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detector</title> <meta name="description" content="Search results for: energy detector"> <meta name="keywords" content="energy detector"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="energy detector"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 8697</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: energy detector</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8697</span> Determination of Unknown Radionuclides Using High Purity Germanium Detectors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20G.%20Onuk">O. G. Onuk</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20S.%20Taura"> L. S. Taura</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20M.%20Eze"> C. M. Eze</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Ngaram"> S. M. Ngaram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The decay chain of radioactive elements in the laboratory and the verification of natural radioactivity of the human body was investigated using the High Purity Germanium (HPGe) detector. Properties of the HPGe detectors were also investigated. The efficiency and energy resolution of HPGe detector used in the laboratory was found to be excellent. The detector was calibrated three times so as to cover a wider energy range. Also the Centroid C of the detector was found to have a linear relationship with the energies of the known gamma-rays. Using the three calibrations of the detector, the energy of an unknown radionuclide was found to follow the decay chain of thorium-232 (232Th) and it was also found that an average adult has about 2.5g Potasium-40 (40K) in the body. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=detector" title="detector">detector</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=energy" title=" energy"> energy</a>, <a href="https://publications.waset.org/abstracts/search?q=radionuclides" title=" radionuclides"> radionuclides</a>, <a href="https://publications.waset.org/abstracts/search?q=resolution" title=" resolution"> resolution</a> </p> <a href="https://publications.waset.org/abstracts/83964/determination-of-unknown-radionuclides-using-high-purity-germanium-detectors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83964.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8696</span> Performance Analysis of the Time-Based and Periodogram-Based Energy Detector for Spectrum Sensing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadaf%20Nawaz">Sadaf Nawaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Adnan%20Ahmed%20Khan"> Adnan Ahmed Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Asad%20Mahmood"> Asad Mahmood</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaudhary%20Farrukh%20Javed"> Chaudhary Farrukh Javed </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Classically, an energy detector is implemented in time domain (TD). However, frequency domain (FD) based energy detector has demonstrated an improved performance. This paper presents a comparison between the two approaches as to analyze their pros and cons. A detailed performance analysis of the classical TD energy-detector and the periodogram based detector is performed. Exact and approximate mathematical expressions for probability of false alarm (Pf) and probability of detection (Pd) are derived for both approaches. The derived expressions naturally lead to an analytical as well as intuitive reasoning for the improved performance of (Pf) and (Pd) in different scenarios. Our analysis suggests the dependence improvement on buffer sizes. Pf is improved in FD, whereas Pd is enhanced in TD based energy detectors. Finally, Monte Carlo simulations results demonstrate the analysis reached by the derived expressions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognitive%20radio" title="cognitive radio">cognitive radio</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20detector" title=" energy detector"> energy detector</a>, <a href="https://publications.waset.org/abstracts/search?q=periodogram" title=" periodogram"> periodogram</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrum%20sensing" title=" spectrum sensing"> spectrum sensing</a> </p> <a href="https://publications.waset.org/abstracts/63028/performance-analysis-of-the-time-based-and-periodogram-based-energy-detector-for-spectrum-sensing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63028.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">377</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8695</span> Determination of Full Energy Peak Efficiency and Resolution of Nai (Tl) Detector Using Gamma-ray Spectroscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jibon%20Sharma">Jibon Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Alakjyoti%20Patowary"> Alakjyoti Patowary</a>, <a href="https://publications.waset.org/abstracts/search?q=Moirangthem%20Nara%20Singh"> Moirangthem Nara Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In experimental research it is very much essential to obtain the quality control of the system used for the experiment. NaI (Tl) scintillation detector is the most commonly used in radiation and medical physics for measurement of the gamma ray activity of various samples. In addition, the scintillation detector has a lot of applications in the elemental analysis of various compounds, alloys using activation analysis. In each application for quantitative analysis, it is very much essential to know the detection efficiency and resolution for different gamma energies. In this work, the energy dependence of efficiency and resolution of NaI (Tl) detector using gamma-ray spectroscopy are investigated. Different photon energies of 356.01 keV,511keV,661.60keV,1170 keV,1274.53 keV and 1330 keV are obtained from four radioactive sources (133Ba,22Na,137Cs and 60 Co) used in these studies. Values of full energy peak efficiencies of these gamma energies are found to be respectively 58.46%,10.15%,14.39%,1.4%,3.27% and 1.31%. The values of percent resolution for above different gamma ray energies are found to be 11.27%,7.27%,6.38%,5.17%,4.86% and 4.74% respectively. It was found that the efficiency of the detector exponentially decreases with energy and the resolution of the detector is directly proportional to the energy of gamma-ray. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=naI%20%28Tl%29%20gamma-ray%20spectrometer" title="naI (Tl) gamma-ray spectrometer">naI (Tl) gamma-ray spectrometer</a>, <a href="https://publications.waset.org/abstracts/search?q=resolution" title=" resolution"> resolution</a>, <a href="https://publications.waset.org/abstracts/search?q=full%20energy%20peak%20efficiency" title=" full energy peak efficiency"> full energy peak efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=radioactive%20sources" title=" radioactive sources"> radioactive sources</a> </p> <a href="https://publications.waset.org/abstracts/158239/determination-of-full-energy-peak-efficiency-and-resolution-of-nai-tl-detector-using-gamma-ray-spectroscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158239.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">104</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8694</span> Development of Alpha Spectroscopy Method with Solid State Nuclear Track Detector Using Aluminium Thin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nidal%20Dwaikat">Nidal Dwaikat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work presents the development of alpha spectroscopy method with Solid-state nuclear track detectors using aluminum thin films. The resolution of this method is high, and it is able to discriminate between alpha particles at different incident energy. It can measure the exact number of alpha particles at specific energy without needing a calibration of alpha track diameter versus alpha energy. This method was tested by using Cf-252 alpha standard source at energies 5.11 Mev, 3.86 MeV and 2.7 MeV, which produced by the variation of detector -standard source distance. On front side, two detectors were covered with two Aluminum thin films and the third detector was kept uncovered. The thickness of Aluminum thin films was selected carefully (using SRIM 2013) such that one of the films will block the lower two alpha particles (3.86 MeV and 2.7 MeV) and the alpha particles at higher energy (5.11 Mev) can penetrate the film and reach the detector’s surface. The second thin film will block alpha particles at lower energy of 2.7 MeV and allow alpha particles at higher two energies (5.11 Mev and 3.86 MeV) to penetrate and produce tracks. For uncovered detector, alpha particles at three different energies can produce tracks on it. For quality assurance and accuracy, the detectors were mounted on thick enough copper substrates to block exposure from the backside. The tracks on the first detector are due to alpha particles at energy of 5.11 MeV. The difference between the tracks number on the first detector and the tracks number on the second detector is due to alpha particles at energy of 3.8 MeV. Finally, by subtracting the tracks number on the second detector from the tracks number on the third detector (uncovered), we can find the tracks number due to alpha particles at energy 2.7 MeV. After knowing the efficiency calibration factor, we can exactly calculate the activity of standard source. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminium%20thin%20film" title="aluminium thin film">aluminium thin film</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%20particles" title=" alpha particles"> alpha particles</a>, <a href="https://publications.waset.org/abstracts/search?q=copper%20substrate" title=" copper substrate"> copper substrate</a>, <a href="https://publications.waset.org/abstracts/search?q=CR-39%20detector" title=" CR-39 detector"> CR-39 detector</a> </p> <a href="https://publications.waset.org/abstracts/41596/development-of-alpha-spectroscopy-method-with-solid-state-nuclear-track-detector-using-aluminium-thin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41596.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8693</span> Development and Evaluation of a Portable Ammonia Gas Detector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jaheon%20Gu">Jaheon Gu</a>, <a href="https://publications.waset.org/abstracts/search?q=Wooyong%20Chung"> Wooyong Chung</a>, <a href="https://publications.waset.org/abstracts/search?q=Mijung%20Koo"> Mijung Koo</a>, <a href="https://publications.waset.org/abstracts/search?q=Seonbok%20Lee"> Seonbok Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyoutae%20Park"> Gyoutae Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Sangguk%20Ahn"> Sangguk Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiesik%20Kim"> Hiesik Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jungil%20Park"> Jungil Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present a portable ammonia gas detector for performing the gas safety management efficiently. The display of the detector is separated from its body. The display module is received the data measured from the detector using ZigBee. The detector has a rechargeable li-ion battery which can be use for 11~12 hours, and a Bluetooth module for sending the data to the PC or the smart devices. The data are sent to the server and can access using the web browser or mobile application. The range of the detection concentration is 0~100ppm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ammonia" title="ammonia">ammonia</a>, <a href="https://publications.waset.org/abstracts/search?q=detector" title=" detector"> detector</a>, <a href="https://publications.waset.org/abstracts/search?q=gas" title=" gas"> gas</a>, <a href="https://publications.waset.org/abstracts/search?q=portable" title=" portable"> portable</a> </p> <a href="https://publications.waset.org/abstracts/48045/development-and-evaluation-of-a-portable-ammonia-gas-detector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48045.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">417</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8692</span> Using the Timepix Detector at CERN Accelerator Facilities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andrii%20Natochii">Andrii Natochii</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The UA9 collaboration in the last two years has installed two different types of detectors to investigate the channeling effect in the bent silicon crystals with high-energy particles beam on the CERN accelerator facilities: Cherenkov detector CpFM and silicon pixel detector Timepix. In the current work, we describe the main performances of the Timepix detector operation at the SPS and H8 extracted beamline at CERN. We are presenting some detector calibration results and tuning. Our research topics also cover a cluster analysis algorithm for the particle hits reconstruction. We describe the optimal acquisition setup for the Timepix device and the edges of its functionality for the high energy and flux beam monitoring. The measurements of the crystal parameters are very important for the future bent crystal applications and needs a track reconstruction apparatus. Thus, it was decided to construct a short range (1.2 m long) particle telescope based on the Timepix sensors and test it at H8 SPS extraction beamline. The obtained results will be shown as well. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beam%20monitoring" title="beam monitoring">beam monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=channeling" title=" channeling"> channeling</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20tracking" title=" particle tracking"> particle tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=Timepix%20detector" title=" Timepix detector"> Timepix detector</a> </p> <a href="https://publications.waset.org/abstracts/101942/using-the-timepix-detector-at-cern-accelerator-facilities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101942.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">180</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8691</span> Reliability Factors Based Fuzzy Logic Scheme for Spectrum Sensing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tallataf%20Rasheed">Tallataf Rasheed</a>, <a href="https://publications.waset.org/abstracts/search?q=Adnan%20Rashdi"> Adnan Rashdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Naeem%20Akhtar"> Ahmad Naeem Akhtar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The accurate spectrum sensing is a fundamental requirement of dynamic spectrum access for deployment of Cognitive Radio Network (CRN). To acheive this requirement a Reliability factors based Fuzzy Logic (RFL) Scheme for Spectrum Sensing has been proposed in this paper. Cognitive Radio User (CRU) predicts the presence or absence of Primary User (PU) using energy detector and calculates the Reliability factors which are SNR of sensing node, threshold of energy detector and decision difference of each node with other nodes in a cooperative spectrum sensing environment. Then the decision of energy detector is combined with Reliability factors of sensing node using Fuzzy Logic. These Reliability Factors used in RFL Scheme describes the reliability of decision made by a CRU to improve the local spectrum sensing. This Fuzzy combining scheme provides the accuracy of decision made by sensornode. The simulation results have shown that the proposed technique provide better PU detection probability than existing Spectrum Sensing Techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognitive%20radio" title="cognitive radio">cognitive radio</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrum%20sensing" title=" spectrum sensing"> spectrum sensing</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20detector" title=" energy detector"> energy detector</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability%20factors" title=" reliability factors"> reliability factors</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20logic" title=" fuzzy logic"> fuzzy logic</a> </p> <a href="https://publications.waset.org/abstracts/77586/reliability-factors-based-fuzzy-logic-scheme-for-spectrum-sensing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77586.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">486</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8690</span> Investigation of the Effect of Pressure Changes on the Gas Proportional Detector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Golgoun">S. M. Golgoun</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Taheri"> S. M. Taheri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Investigation of radioactive contamination of personnel working in radiation centers to identify radioactive materials and then measure the potential contamination and eliminate it has always been considered. For this purpose, various ways have been proposed so far and different devices have been designed and built. Gas sealed proportional counter has special working conditions. In this research, a gas sealed detector of proportional counter type was made and then its various parameters were investigated. Some parameters are influential on their working conditions and one of these most important parameters is the internal pressure of the proportional gas-filled detector. In this experimental research, we produced software for examination and altering high voltage, registering data, and calculating efficiency. By this, we investigated different gas pressure effects on detector efficiency and proposed optimizing working conditions of this detector. After reviewing the results, we suggested a range between 20-30 mbar pressure for this gas sealed detector. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gas%20sealed" title="gas sealed">gas sealed</a>, <a href="https://publications.waset.org/abstracts/search?q=proportional%20detector" title=" proportional detector"> proportional detector</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure" title=" pressure"> pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=counter" title=" counter"> counter</a> </p> <a href="https://publications.waset.org/abstracts/146316/investigation-of-the-effect-of-pressure-changes-on-the-gas-proportional-detector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146316.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">119</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8689</span> Epileptic Seizure Onset Detection via Energy and Neural Synchronization Decision Fusion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Qaraqe">Marwa Qaraqe</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Ismail"> Muhammad Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Erchin%20Serpedin"> Erchin Serpedin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a novel architecture for a patient-specific epileptic seizure onset detector using scalp electroencephalography (EEG). The proposed architecture is based on the decision fusion calculated from energy and neural synchronization related features. Specifically, one level of the detector calculates the condition number (CN) of an EEG matrix to evaluate the amount of neural synchronization present within the EEG channels. On a parallel level, the detector evaluates the energy contained in four EEG frequency subbands. The information is then fed into two independent (parallel) classification units based on support vector machines to determine the onset of a seizure event. The decisions from the two classifiers are then combined together according to two fusion techniques to determine a global decision. Experimental results demonstrate that the detector based on the AND fusion technique outperforms existing detectors with a sensitivity of 100%, detection latency of 3 seconds, while it achieves a 2:76 false alarm rate per hour. The OR fusion technique achieves a sensitivity of 100%, and significantly improves delay latency (0:17 seconds), yet it achieves 12 false alarms per hour. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=epilepsy" title="epilepsy">epilepsy</a>, <a href="https://publications.waset.org/abstracts/search?q=EEG" title=" EEG"> EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=seizure%20onset" title=" seizure onset"> seizure onset</a>, <a href="https://publications.waset.org/abstracts/search?q=electroencephalography" title=" electroencephalography"> electroencephalography</a>, <a href="https://publications.waset.org/abstracts/search?q=neuron" title=" neuron"> neuron</a>, <a href="https://publications.waset.org/abstracts/search?q=detection" title=" detection"> detection</a> </p> <a href="https://publications.waset.org/abstracts/24040/epileptic-seizure-onset-detection-via-energy-and-neural-synchronization-decision-fusion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24040.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">477</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8688</span> An Approach for Detection Efficiency Determination of High Purity Germanium Detector Using Cesium-137</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulsalam%20M.%20Alhawsawi">Abdulsalam M. Alhawsawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Estimation of a radiation detector's efficiency plays a significant role in calculating the activity of radioactive samples. Detector efficiency is measured using sources that emit a variety of energies from low to high-energy photons along the energy spectrum. Some photon energies are hard to find in lab settings either because check sources are hard to obtain or the sources have short half-lives. This work aims to develop a method to determine the efficiency of a High Purity Germanium Detector (HPGe) based on the 662 keV gamma ray photon emitted from Cs-137. Cesium-137 is readily available in most labs with radiation detection and health physics applications and has a long half-life of ~30 years. Several photon efficiencies were calculated using the MCNP5 simulation code. The simulated efficiency of the 662 keV photon was used as a base to calculate other photon efficiencies in a point source and a Marinelli Beaker form. In the Marinelli Beaker filled with water case, the efficiency of the 59 keV low energy photons from Am-241 was estimated with a 9% error compared to the MCNP5 simulated efficiency. The 1.17 and 1.33 MeV high energy photons emitted by Co-60 had errors of 4% and 5%, respectively. The estimated errors are considered acceptable in calculating the activity of unknown samples as they fall within the 95% confidence level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MCNP5" title="MCNP5">MCNP5</a>, <a href="https://publications.waset.org/abstracts/search?q=MonteCarlo%20simulations" title=" MonteCarlo simulations"> MonteCarlo simulations</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency%20calculation" title=" efficiency calculation"> efficiency calculation</a>, <a href="https://publications.waset.org/abstracts/search?q=absolute%20efficiency" title=" absolute efficiency"> absolute efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=activity%20estimation" title=" activity estimation"> activity estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=Cs-137" title=" Cs-137"> Cs-137</a> </p> <a href="https://publications.waset.org/abstracts/158253/an-approach-for-detection-efficiency-determination-of-high-purity-germanium-detector-using-cesium-137" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158253.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">117</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8687</span> Development of Nondestructive Imaging Analysis Method Using Muonic X-Ray with a Double-Sided Silicon Strip Detector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I-Huan%20Chiu">I-Huan Chiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazuhiko%20Ninomiya"> Kazuhiko Ninomiya</a>, <a href="https://publications.waset.org/abstracts/search?q=Shin%E2%80%99ichiro%20Takeda"> Shin’ichiro Takeda</a>, <a href="https://publications.waset.org/abstracts/search?q=Meito%20Kajino"> Meito Kajino</a>, <a href="https://publications.waset.org/abstracts/search?q=Miho%20Katsuragawa"> Miho Katsuragawa</a>, <a href="https://publications.waset.org/abstracts/search?q=Shunsaku%20Nagasawa"> Shunsaku Nagasawa</a>, <a href="https://publications.waset.org/abstracts/search?q=Atsushi%20Shinohara"> Atsushi Shinohara</a>, <a href="https://publications.waset.org/abstracts/search?q=Tadayuki%20Takahashi"> Tadayuki Takahashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ryota%20Tomaru"> Ryota Tomaru</a>, <a href="https://publications.waset.org/abstracts/search?q=Shin%20Watanabe"> Shin Watanabe</a>, <a href="https://publications.waset.org/abstracts/search?q=Goro%20Yabu"> Goro Yabu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, a nondestructive elemental analysis method based on muonic X-ray measurements has been developed and applied for various samples. Muonic X-rays are emitted after the formation of a muonic atom, which occurs when a negatively charged muon is captured in a muon atomic orbit around the nucleus. Because muonic X-rays have higher energy than electronic X-rays due to the muon mass, they can be measured without being absorbed by a material. Thus, estimating the two-dimensional (2D) elemental distribution of a sample became possible using an X-ray imaging detector. In this work, we report a non-destructive imaging experiment using muonic X-rays at Japan Proton Accelerator Research Complex. The irradiated target consisted of polypropylene material, and a double-sided silicon strip detector, which was developed as an imaging detector for astronomical observation, was employed. A peak corresponding to muonic X-rays from the carbon atoms in the target was clearly observed in the energy spectrum at an energy of 14 keV, and 2D visualizations were successfully reconstructed to reveal the projection image from the target. This result demonstrates the potential of the non-destructive elemental imaging method that is based on muonic X-ray measurement. To obtain a higher position resolution for imaging a smaller target, a new detector system will be developed to improve the statistical analysis in further research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DSSD" title="DSSD">DSSD</a>, <a href="https://publications.waset.org/abstracts/search?q=muon" title=" muon"> muon</a>, <a href="https://publications.waset.org/abstracts/search?q=muonic%20X-ray" title=" muonic X-ray"> muonic X-ray</a>, <a href="https://publications.waset.org/abstracts/search?q=imaging" title=" imaging"> imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=non-destructive%20analysis" title=" non-destructive analysis"> non-destructive analysis</a> </p> <a href="https://publications.waset.org/abstracts/137568/development-of-nondestructive-imaging-analysis-method-using-muonic-x-ray-with-a-double-sided-silicon-strip-detector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137568.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">205</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8686</span> Cosmic Background Reduction in the Radiocarbon Measurements by Liquid Scintillation Spectrometry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natasa%20Todorovic">Natasa Todorovic</a>, <a href="https://publications.waset.org/abstracts/search?q=Jovana%20Nikolov">Jovana Nikolov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Guard detector efficiency, cosmic background, and its variation were determinate using ultra low-level liquid scintillation spectrometer Quantulus 1220, equipped with an anti-Compton guard detector, in the surface laboratory at the University of Novi Sad, Serbia, Atmospheric pressure variation has an observable effect on the anti-Compton guard detector count rate. and the cosmic muon flux is lower during a high-pressure period. Also, the guard detector Compton continuum provides a good view of the level of gamma radiation in the laboratory environment. The efficiency of the guard detector in the channel interval from 750 to 1024 was assessed to 93.45%; efficiency in the entire window (channels 1 to 1024) was 75.23%, which is in good agreement with literature data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cosmic%20radiation" title="cosmic radiation">cosmic radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=background%20reduction" title=" background reduction"> background reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20scintillation%20counting" title=" liquid scintillation counting"> liquid scintillation counting</a>, <a href="https://publications.waset.org/abstracts/search?q=guard%20detector%20efficiency" title=" guard detector efficiency"> guard detector efficiency</a> </p> <a href="https://publications.waset.org/abstracts/140808/cosmic-background-reduction-in-the-radiocarbon-measurements-by-liquid-scintillation-spectrometry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140808.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">157</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8685</span> Probing Extensive Air Shower Primaries and Their Interactions by Combining Individual Muon Tracks and Shower Depth</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moon%20Moon%20Devi">Moon Moon Devi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ran%20Budnik"> Ran Budnik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The current large area cosmic ray detector surface arrays typically measure only the net flux and arrival-time of the charged particles produced in an extensive air shower (EAS). Measurement of the individual charged particles at a surface array will provide additional distinguishing parameters to identify the primary and to map the very high energy interactions in the upper layers of the atmosphere. In turn, these may probe anomalies in QCD interactions at energies beyond the reach of current accelerators. The recent attempts of studying the individual muon tracks are limited in their expandability to larger arrays and can only probe primary particles with energy up to about 10^15.5 eV. New developments in detector technology allow for a realistic cost of large area detectors, however with limitations on energy resolutions, directional information, and dynamic range. In this study, we perform a simulation study using CORSIKA to combine the energy spectrum and lateral spread of the muons with the longitudinal depth (Xmax) of an EAS initiated by a primary at ultra high energies (10¹⁶ – 10¹⁹) eV. Using proton and iron as the shower primaries, we show that the muon observables and Xmax together can be used to distinguish the primary. This study can be used to design a future detector for the surface array, which will be able to enhance our knowledge of primaries and QCD interactions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultra%20high%20energy%20extensive%20air%20shower" title="ultra high energy extensive air shower">ultra high energy extensive air shower</a>, <a href="https://publications.waset.org/abstracts/search?q=muon%20tracking" title=" muon tracking"> muon tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20shower%20primaries" title=" air shower primaries"> air shower primaries</a>, <a href="https://publications.waset.org/abstracts/search?q=QCD%20interactions" title=" QCD interactions"> QCD interactions</a> </p> <a href="https://publications.waset.org/abstracts/55424/probing-extensive-air-shower-primaries-and-their-interactions-by-combining-individual-muon-tracks-and-shower-depth" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55424.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">228</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8684</span> Day/Night Detector for Vehicle Tracking in Traffic Monitoring Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Taha">M. Taha</a>, <a href="https://publications.waset.org/abstracts/search?q=Hala%20H.%20Zayed"> Hala H. Zayed</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Nazmy"> T. Nazmy</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Khalifa"> M. Khalifa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, traffic monitoring has attracted the attention of computer vision researchers. Many algorithms have been developed to detect and track moving vehicles. In fact, vehicle tracking in daytime and in nighttime cannot be approached with the same techniques, due to the extreme different illumination conditions. Consequently, traffic-monitoring systems are in need of having a component to differentiate between daytime and nighttime scenes. In this paper, a HSV-based day/night detector is proposed for traffic monitoring scenes. The detector employs the hue-histogram and the value-histogram on the top half of the image frame. Experimental results show that the extraction of the brightness features along with the color features within the top region of the image is effective for classifying traffic scenes. In addition, the detector achieves high precision and recall rates along with it is feasible for real time applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=day%2Fnight%20detector" title="day/night detector">day/night detector</a>, <a href="https://publications.waset.org/abstracts/search?q=daytime%2Fnighttime%20classification" title=" daytime/nighttime classification"> daytime/nighttime classification</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20classification" title=" image classification"> image classification</a>, <a href="https://publications.waset.org/abstracts/search?q=vehicle%20tracking" title=" vehicle tracking"> vehicle tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=traffic%20monitoring" title=" traffic monitoring"> traffic monitoring</a> </p> <a href="https://publications.waset.org/abstracts/34948/daynight-detector-for-vehicle-tracking-in-traffic-monitoring-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34948.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">555</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8683</span> Study on Beta-Ray Detection System in Water Using a MCNP Simulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ki%20Hyun%20Park">Ki Hyun Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Hye%20Min%20Park"> Hye Min Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeong%20Ho%20Kim"> Jeong Ho Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chan%20Jong%20Park"> Chan Jong Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Koan%20Sik%20Joo"> Koan Sik Joo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the modern days, the use of radioactive substances is on the rise in the areas like chemical weaponry, industrial usage, and power plants. Although there are various technologies available to detect and monitor radioactive substances in the air, the technologies to detect underwater radioactive substances are scarce. In this study, computer simulation of the underwater detection system measuring beta-ray, a radioactive substance, has been done through MCNP. CaF₂, YAP(Ce) and YAG(Ce) have been used in the computer simulation to detect beta-ray as scintillator. Also, the source used in the computer simulation is Sr-90 and Y-90, both of them emitting only pure beta-ray. The distance between the source and the detector was shifted from 1mm to 10mm by 1 mm in the computer simulation. The result indicated that Sr-90 was impossible to measure below 1 mm since its emission energy is low while Y-90 was able to be measured up to 10mm underwater. In addition, the detector designed with CaF₂ had the highest efficiency among 3 scintillators used in the computer simulation. Since it was possible to verify the detectable range and the detection efficiency according to modeling through MCNP simulation, it is expected that such result will reduce the time and cost in building the actual beta-ray detector and evaluating its performances, thereby contributing the research and development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Beta-ray" title="Beta-ray">Beta-ray</a>, <a href="https://publications.waset.org/abstracts/search?q=CaF%E2%82%82" title=" CaF₂"> CaF₂</a>, <a href="https://publications.waset.org/abstracts/search?q=detector" title=" detector"> detector</a>, <a href="https://publications.waset.org/abstracts/search?q=MCNP%20simulation" title=" MCNP simulation"> MCNP simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=scintillator" title=" scintillator"> scintillator</a> </p> <a href="https://publications.waset.org/abstracts/53352/study-on-beta-ray-detection-system-in-water-using-a-mcnp-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53352.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">510</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8682</span> The Next Generation Neutrinoless Double-Beta Decay Experiment nEXO</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ryan%20Maclellan">Ryan Maclellan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The nEXO Collaboration is designing a very large detector for neutrinoless double beta decay of Xe-136. The nEXO detector is rooted in the current EXO-200 program, which has reached a sensitivity for the half-life of the decay of 1.9x10^25 years with an exposure of 99.8 kg-y. The baseline nEXO design assumes 5 tonnes of liquid xenon, enriched in the mass 136 isotope, within a time projection chamber. The detector is being designed to reach a half-life sensitivity of > 5x10^27 years covering the inverted neutrino mass hierarchy, with 5 years of data. We present the nEXO detector design, the current status of R&D efforts, and the physics case for the experiment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=double-beta" title="double-beta">double-beta</a>, <a href="https://publications.waset.org/abstracts/search?q=Majorana" title=" Majorana"> Majorana</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrino" title=" neutrino"> neutrino</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrinoless" title=" neutrinoless"> neutrinoless</a> </p> <a href="https://publications.waset.org/abstracts/34405/the-next-generation-neutrinoless-double-beta-decay-experiment-nexo" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34405.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">423</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8681</span> Design and Simulation of a Radiation Spectrometer Using Scintillation Detectors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Waleed%20K.%20Saib">Waleed K. Saib</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulsalam%20M.%20Alhawsawi"> Abdulsalam M. Alhawsawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Essam%20Banoqitah"> Essam Banoqitah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The idea of this research is to design a radiation spectrometer using LSO scintillation detector coupled to a C series of SiPM (silicon photomultiplier). The device can be used to detects gamma and X-ray radiation. This device is also designed to estimates the activity of the source contamination. The SiPM will detect light in the visible range above the threshold and read them as counts. Three gamma sources were used for these experiments Cs-137, Am-241 and Co-60 with various activities. These sources are applied for four experiments operating the SiPM as a spectrometer, energy resolution, pile-up set and efficiency. The SiPM is connected to a MCA to perform as a spectrometer. Cerium doped Lutetium Silicate (Lu₂SiO₅) with light yield 26000 photons/Mev coupled with the SiPM. As a result, all the main features of the Cs-137, Am-241 and Co-60 are identified in MCA. The experiment shows how photon energy and probability of interaction are inversely related. Total attenuation reduces as photon energy increases. An analytical calculation was made to obtain the FWHM resolution for each gamma source. The FWHM resolution for Am-241 (59 keV) is 28.75 %, for Cs-137 (662 keV) is 7.85 %, for Co-60 (1173 keV) is 4.46 % and for Co-60 (1332 keV) is 3.70%. Moreover, the experiment shows that the dead time and counts number decreased when the pile-up rejection was disabled and the FWHM decreased when the pile-up was enabled. The efficiencies were calculated at four different distances from the detector 2, 4, 8 and 16 cm. The detection efficiency was observed to declined exponentially with increasing distance from the detector face. Conclusively, the SiPM board operated with an LSO scintillator crystal as a spectrometer. The SiPM energy resolution for the three gamma sources used was a decent comparison to other PMTs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PMT" title="PMT">PMT</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation" title=" radiation"> radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20detection" title=" radiation detection"> radiation detection</a>, <a href="https://publications.waset.org/abstracts/search?q=scintillation%20detectors" title=" scintillation detectors"> scintillation detectors</a>, <a href="https://publications.waset.org/abstracts/search?q=silicon%20photomultiplier" title=" silicon photomultiplier"> silicon photomultiplier</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrometer" title=" spectrometer"> spectrometer</a> </p> <a href="https://publications.waset.org/abstracts/144058/design-and-simulation-of-a-radiation-spectrometer-using-scintillation-detectors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144058.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">155</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8680</span> Basic Study of Mammographic Image Magnification System with Eye-Detector and Simple EEG Scanner</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aika%20Umemuro">Aika Umemuro</a>, <a href="https://publications.waset.org/abstracts/search?q=Mitsuru%20Sato"> Mitsuru Sato</a>, <a href="https://publications.waset.org/abstracts/search?q=Mizuki%20Narita"> Mizuki Narita</a>, <a href="https://publications.waset.org/abstracts/search?q=Saya%20Hori"> Saya Hori</a>, <a href="https://publications.waset.org/abstracts/search?q=Saya%20Sakurai"> Saya Sakurai</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomomi%20Nakayama"> Tomomi Nakayama</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayano%20Nakazawa"> Ayano Nakazawa</a>, <a href="https://publications.waset.org/abstracts/search?q=Toshihiro%20Ogura"> Toshihiro Ogura</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mammography requires the detection of very small calcifications, and physicians search for microcalcifications by magnifying the images as they read them. The mouse is necessary to zoom in on the images, but this can be tiring and distracting when many images are read in a single day. Therefore, an image magnification system combining an eye-detector and a simple electroencephalograph (EEG) scanner was devised, and its operability was evaluated. Two experiments were conducted in this study: the measurement of eye-detection error using an eye-detector and the measurement of the time required for image magnification using a simple EEG scanner. Eye-detector validation showed that the mean distance of eye-detection error ranged from 0.64 cm to 2.17 cm, with an overall mean of 1.24 ± 0.81 cm for the observers. The results showed that the eye detection error was small enough for the magnified area of the mammographic image. The average time required for point magnification in the verification of the simple EEG scanner ranged from 5.85 to 16.73 seconds, and individual differences were observed. The reason for this may be that the size of the simple EEG scanner used was not adjustable, so it did not fit well for some subjects. The use of a simple EEG scanner with size adjustment would solve this problem. Therefore, the image magnification system using the eye-detector and the simple EEG scanner is useful. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EEG%20scanner" title="EEG scanner">EEG scanner</a>, <a href="https://publications.waset.org/abstracts/search?q=eye-detector" title=" eye-detector"> eye-detector</a>, <a href="https://publications.waset.org/abstracts/search?q=mammography" title=" mammography"> mammography</a>, <a href="https://publications.waset.org/abstracts/search?q=observers" title=" observers"> observers</a> </p> <a href="https://publications.waset.org/abstracts/155822/basic-study-of-mammographic-image-magnification-system-with-eye-detector-and-simple-eeg-scanner" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155822.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">215</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8679</span> A Large Ion Collider Experiment (ALICE) Diffractive Detector Control System for RUN-II at the Large Hadron Collider </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20C.%20Cabanillas-Noris">J. C. Cabanillas-Noris</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20I.%20Mart%C3%ADnez-Hern%C3%A1ndez"> M. I. Martínez-Hernández</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Le%C3%B3n-Monz%C3%B3n"> I. León-Monzón</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The selection of diffractive events in the ALICE experiment during the first data taking period (RUN-I) of the Large Hadron Collider (LHC) was limited by the range over which rapidity gaps occur. It would be possible to achieve better measurements by expanding the range in which the production of particles can be detected. For this purpose, the ALICE Diffractive (AD0) detector has been installed and commissioned for the second phase (RUN-II). Any new detector should be able to take the data synchronously with all other detectors and be operated through the ALICE central systems. One of the key elements that must be developed for the AD0 detector is the Detector Control System (DCS). The DCS must be designed to operate safely and correctly this detector. Furthermore, the DCS must also provide optimum operating conditions for the acquisition and storage of physics data and ensure these are of the highest quality. The operation of AD0 implies the configuration of about 200 parameters, from electronics settings and power supply levels to the archiving of operating conditions data and the generation of safety alerts. It also includes the automation of procedures to get the AD0 detector ready for taking data in the appropriate conditions for the different run types in ALICE. The performance of AD0 detector depends on a certain number of parameters such as the nominal voltages for each photomultiplier tube (PMT), their threshold levels to accept or reject the incoming pulses, the definition of triggers, etc. All these parameters define the efficiency of AD0 and they have to be monitored and controlled through AD0 DCS. Finally, AD0 DCS provides the operator with multiple interfaces to execute these tasks. They are realized as operating panels and scripts running in the background. These features are implemented on a SCADA software platform as a distributed control system which integrates to the global control system of the ALICE experiment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AD0" title="AD0">AD0</a>, <a href="https://publications.waset.org/abstracts/search?q=ALICE" title=" ALICE"> ALICE</a>, <a href="https://publications.waset.org/abstracts/search?q=DCS" title=" DCS"> DCS</a>, <a href="https://publications.waset.org/abstracts/search?q=LHC" title=" LHC"> LHC</a> </p> <a href="https://publications.waset.org/abstracts/41006/a-large-ion-collider-experiment-alice-diffractive-detector-control-system-for-run-ii-at-the-large-hadron-collider" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41006.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">306</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8678</span> The BNCT Project Using the Cf-252 Source: Monte Carlo Simulations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marta%20B%C5%82a%C5%BCkiewicz-Mazurek">Marta Błażkiewicz-Mazurek</a>, <a href="https://publications.waset.org/abstracts/search?q=Adam%20Konefa%C5%82"> Adam Konefał</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The project can be divided into three main parts: i. modeling the Cf-252 neutron source and conducting an experiment to verify the correctness of the obtained results, ii. design of the BNCT system infrastructure, iii. analysis of the results from the logical detector. Modeling of the Cf-252 source included designing the shape and size of the source as well as the energy and spatial distribution of emitted neutrons. Two options were considered: a point source and a cylindrical spatial source. The energy distribution corresponded to various spectra taken from specialized literature. Directionally isotropic neutron emission was simulated. The simulation results were compared with experimental values determined using the activation detector method using indium foils and cadmium shields. The relative fluence rate of thermal and resonance neutrons was compared in the chosen places in the vicinity of the source. The second part of the project related to the modeling of the BNCT infrastructure consisted of developing a simulation program taking into account all the essential components of this system. Materials with moderating, absorbing, and backscattering properties of neutrons were adopted into the project. Additionally, a gamma radiation filter was introduced into the beam output system. The analysis of the simulation results obtained using a logical detector located at the beam exit from the BNCT infrastructure included neutron energy and their spatial distribution. Optimization of the system involved changing the size and materials of the system to obtain a suitable collimated beam of thermal neutrons. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BNCT" title="BNCT">BNCT</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte%20Carlo" title=" Monte Carlo"> Monte Carlo</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrons" title=" neutrons"> neutrons</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling"> modeling</a> </p> <a href="https://publications.waset.org/abstracts/188739/the-bnct-project-using-the-cf-252-source-monte-carlo-simulations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188739.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">30</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8677</span> Numerical Response of Planar HPGe Detector for 241Am Contamination of Various Shapes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Manohari">M. Manohari</a>, <a href="https://publications.waset.org/abstracts/search?q=Himanshu%20Gupta"> Himanshu Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Priyadharshini"> S. Priyadharshini</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Santhanam"> R. Santhanam</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Chandrasekaran"> S. Chandrasekaran</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Venkatraman"> B. Venkatraman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Injection is one of the potential routes of intake in a radioactive facility. The internal dose due to this intake is monitored at the radiation emergency medical centre, IGCAR using a portable planar HPGe detector. The contaminated wound may be having different shapes. In a reprocessing potential of wound contamination with actinide is more. Efficiency is one of the input parameters for estimation of internal dose. Estimating these efficiencies experimentally would be tedious and cumbersome. Numerical estimation can be a supplement to experiment. As an initial step in this study 241Am contamination of different shapes are studied. In this study portable planar HPGe detector was modeled using Monte Carlo code FLUKA and the effect of different parameters like distance of the contamination from the detector, radius of the circular contamination were studied. Efficiency values for point and surface contamination located at different distances were estimated. The effect of efficiency on the radius of the surface source was more predominant when the source is at 1 cm distance compared to when the source to detector distance is 10 cm. At 1 cm the efficiency decreased quadratically as the radius increased and at 10 cm it decreased linearly. The point source efficiency varied exponentially with source to detector distance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Planar%20HPGe" title="Planar HPGe">Planar HPGe</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency%20value" title=" efficiency value"> efficiency value</a>, <a href="https://publications.waset.org/abstracts/search?q=injection" title=" injection"> injection</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20source" title=" surface source"> surface source</a> </p> <a href="https://publications.waset.org/abstracts/185308/numerical-response-of-planar-hpge-detector-for-241am-contamination-of-various-shapes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185308.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">42</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8676</span> Status and Results from EXO-200</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ryan%20Maclellan">Ryan Maclellan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> EXO-200 has provided one of the most sensitive searches for neutrinoless double-beta decay utilizing 175 kg of enriched liquid xenon in an ultra-low background time projection chamber. This detector has demonstrated excellent energy resolution and background rejection capabilities. Using the first two years of data, EXO-200 has set a limit of 1.1x10^25 years at 90% C.L. on the neutrinoless double-beta decay half-life of Xe-136. The experiment has experienced a brief hiatus in data taking during a temporary shutdown of its host facility: the Waste Isolation Pilot Plant. EXO-200 expects to resume data taking in earnest this fall with upgraded detector electronics. Results from the analysis of EXO-200 data and an update on the current status of EXO-200 will be presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=double-beta" title="double-beta">double-beta</a>, <a href="https://publications.waset.org/abstracts/search?q=Majorana" title=" Majorana"> Majorana</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrino" title=" neutrino"> neutrino</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrinoless" title=" neutrinoless"> neutrinoless</a> </p> <a href="https://publications.waset.org/abstracts/34406/status-and-results-from-exo-200" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34406.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">414</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8675</span> Design, Construction and Performance Evaluation of a HPGe Detector Shield</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Sharifi">M. Sharifi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Mirzaii"> M. Mirzaii</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Bolourinovin"> F. Bolourinovin</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Yousefnia"> H. Yousefnia</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Akbari"> M. Akbari</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Yousefi-Mojir"> K. Yousefi-Mojir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A multilayer passive shield composed of low-activity lead (Pb), copper (Cu), tin (Sn) and iron (Fe) was designed and manufactured for a coaxial HPGe detector placed at a surface laboratory for reducing background radiation and radiation dose to the personnel. The performance of the shield was evaluated and efficiency curves of the detector were plotted by using of the various standard sources in different distances. Monte Carlo simulations and a set of TLD chips were used for dose estimation in two distances of 20 and 40 cm. The results show that the shield reduced background spectrum and the personnel dose more than 95%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPGe%20shield" title="HPGe shield">HPGe shield</a>, <a href="https://publications.waset.org/abstracts/search?q=background%20count" title=" background count"> background count</a>, <a href="https://publications.waset.org/abstracts/search?q=personnel%20dose" title=" personnel dose"> personnel dose</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency%20curve" title=" efficiency curve"> efficiency curve</a> </p> <a href="https://publications.waset.org/abstracts/34295/design-construction-and-performance-evaluation-of-a-hpge-detector-shield" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34295.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">456</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8674</span> Numerical Response of Coaxial HPGe Detector for Skull and Knee Measurement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pabitra%20Sahu">Pabitra Sahu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Manohari"> M. Manohari</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Priyadharshini"> S. Priyadharshini</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Santhanam"> R. Santhanam</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Chandrasekaran"> S. Chandrasekaran</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Venkatraman"> B. Venkatraman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radiation workers of reprocessing plants have a potential for internal exposure due to actinides and fission products. Radionuclides like Americium, lead, Polonium and Europium are bone seekers and get accumulated in the skeletal part. As the major skeletal content is in the skull (13%) and knee (22%), measurements of old intake have to be carried out in the skull and knee. At the Indira Gandhi Centre for Atomic Research, a twin HPGe-based actinide monitor is used for the measurement of actinides present in bone. Efficiency estimation, which is one of the prerequisites for the quantification of radionuclides, requires anthropomorphic phantoms. Such phantoms are very limited. Hence, in this study, efficiency curves for a Twin HPGe-based actinide monitoring system are established theoretically using the FLUKA Monte Carlo method and ICRP adult male voxel phantom. In the case of skull measurement, the detector is placed over the forehead, and for knee measurement, one detector is placed over each knee. The efficiency values of radionuclides present in the knee and skull vary from 3.72E-04 to 4.19E-04 CPS/photon and 5.22E-04 to 7.07E-04 CPS/photon, respectively, for the energy range 17 to 3000keV. The efficiency curves for the measurement are established, and it is found that initially, the efficiency value increases up to 100 keV and then starts decreasing. It is found that the skull efficiency values are 4% to 63% higher than that of the knee, depending on the energy for all the energies except 17.74 keV. The reason is the closeness of the detector to the skull compared to the knee. But for 17.74 keV the efficiency of the knee is more than the skull due to the higher attenuation caused in the skull bones because of its greater thickness. The Minimum Detectable Activity (MDA) for 241Am present in the skull and knee is 9 Bq. 239Pu has a MDA of 950 Bq and 1270 Bq for knee and skull, respectively, for a counting time of 1800 sec. This paper discusses the simulation method and the results obtained in the study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FLUKA%20Monte%20Carlo%20Method" title="FLUKA Monte Carlo Method">FLUKA Monte Carlo Method</a>, <a href="https://publications.waset.org/abstracts/search?q=ICRP%20adult%20male%20voxel%20phantom" title=" ICRP adult male voxel phantom"> ICRP adult male voxel phantom</a>, <a href="https://publications.waset.org/abstracts/search?q=knee" title=" knee"> knee</a>, <a href="https://publications.waset.org/abstracts/search?q=Skull." title=" Skull."> Skull.</a> </p> <a href="https://publications.waset.org/abstracts/185283/numerical-response-of-coaxial-hpge-detector-for-skull-and-knee-measurement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185283.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">51</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8673</span> Design of a Portable Shielding System for a Newly Installed NaI(Tl) Detector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mayesha%20Tahsin">Mayesha Tahsin</a>, <a href="https://publications.waset.org/abstracts/search?q=A.S.%20Mollah"> A.S. Mollah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, a 1.5x1.5 inch NaI(Tl) detector based gamma-ray spectroscopy system has been installed in the laboratory of the Nuclear Science and Engineering Department of the Military Institute of Science and Technology for radioactivity detection purposes. The newly installed NaI(Tl) detector has a circular lead shield of 22 mm width. An important consideration of any gamma-ray spectroscopy is the minimization of natural background radiation not originating from the radioactive sample that is being measured. Natural background gamma-ray radiation comes from naturally occurring or man-made radionuclides in the environment or from cosmic sources. Moreover, the main problem with this system is that it is not suitable for measurements of radioactivity with a large sample container like Petridish or Marinelli beaker geometry. When any laboratory installs a new detector or/and new shield, it “must” first carry out quality and performance tests for the detector and shield. This paper describes a new portable shielding system with lead that can reduce the background radiation. Intensity of gamma radiation after passing the shielding will be calculated using shielding equation I=Ioe-µx where Io is initial intensity of the gamma source, I is intensity after passing through the shield, µ is linear attenuation coefficient of the shielding material, and x is the thickness of the shielding material. The height and width of the shielding will be selected in order to accommodate the large sample container. The detector will be surrounded by a 4π-geometry low activity lead shield. An additional 1.5 mm thick shield of tin and 1 mm thick shield of copper covering the inner part of the lead shielding will be added in order to remove the presence of characteristic X-rays from the lead shield. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shield" title="shield">shield</a>, <a href="https://publications.waset.org/abstracts/search?q=NaI%20%28Tl%29%20detector" title=" NaI (Tl) detector"> NaI (Tl) detector</a>, <a href="https://publications.waset.org/abstracts/search?q=gamma%20radiation" title=" gamma radiation"> gamma radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=intensity" title=" intensity"> intensity</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20attenuation%20coefficient" title=" linear attenuation coefficient"> linear attenuation coefficient</a> </p> <a href="https://publications.waset.org/abstracts/146333/design-of-a-portable-shielding-system-for-a-newly-installed-naitl-detector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146333.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8672</span> High Purity Germanium Detector Characterization by Means of Monte Carlo Simulation through Application of Geant4 Toolkit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Milos%20Travar">Milos Travar</a>, <a href="https://publications.waset.org/abstracts/search?q=Jovana%20Nikolov"> Jovana Nikolov</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrej%20Vranicar"> Andrej Vranicar</a>, <a href="https://publications.waset.org/abstracts/search?q=Natasa%20Todorovic"> Natasa Todorovic</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Over the years, High Purity Germanium (HPGe) detectors proved to be an excellent practical tool and, as such, have established their today's wide use in low background γ-spectrometry. One of the advantages of gamma-ray spectrometry is its easy sample preparation as chemical processing and separation of the studied subject are not required. Thus, with a single measurement, one can simultaneously perform both qualitative and quantitative analysis. One of the most prominent features of HPGe detectors, besides their excellent efficiency, is their superior resolution. This feature virtually allows a researcher to perform a thorough analysis by discriminating photons of similar energies in the studied spectra where otherwise they would superimpose within a single-energy peak and, as such, could potentially scathe analysis and produce wrongly assessed results. Naturally, this feature is of great importance when the identification of radionuclides, as well as their activity concentrations, is being practiced where high precision comes as a necessity. In measurements of this nature, in order to be able to reproduce good and trustworthy results, one has to have initially performed an adequate full-energy peak (FEP) efficiency calibration of the used equipment. However, experimental determination of the response, i.e., efficiency curves for a given detector-sample configuration and its geometry, is not always easy and requires a certain set of reference calibration sources in order to account for and cover broader energy ranges of interest. With the goal of overcoming these difficulties, a lot of researches turned towards the application of different software toolkits that implement the Monte Carlo method (e.g., MCNP, FLUKA, PENELOPE, Geant4, etc.), as it has proven time and time again to be a very powerful tool. In the process of creating a reliable model, one has to have well-established and described specifications of the detector. Unfortunately, the documentation that manufacturers provide alongside the equipment is rarely sufficient enough for this purpose. Furthermore, certain parameters tend to evolve and change over time, especially with older equipment. Deterioration of these parameters consequently decreases the active volume of the crystal and can thus affect the efficiencies by a large margin if they are not properly taken into account. In this study, the optimisation method of two HPGe detectors through the implementation of the Geant4 toolkit developed by CERN is described, with the goal of further improving simulation accuracy in calculations of FEP efficiencies by investigating the influence of certain detector variables (e.g., crystal-to-window distance, dead layer thicknesses, inner crystal’s void dimensions, etc.). Detectors on which the optimisation procedures were carried out were a standard traditional co-axial extended range detector (XtRa HPGe, CANBERRA) and a broad energy range planar detector (BEGe, CANBERRA). Optimised models were verified through comparison with experimentally obtained data from measurements of a set of point-like radioactive sources. Acquired results of both detectors displayed good agreement with experimental data that falls under an average statistical uncertainty of ∼ 4.6% for XtRa and ∼ 1.8% for BEGe detector within the energy range of 59.4−1836.1 [keV] and 59.4−1212.9 [keV], respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPGe%20detector" title="HPGe detector">HPGe detector</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%B3%20spectrometry" title=" γ spectrometry"> γ spectrometry</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=Geant4%20simulation" title=" Geant4 simulation"> Geant4 simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte%20Carlo%20method" title=" Monte Carlo method"> Monte Carlo method</a> </p> <a href="https://publications.waset.org/abstracts/152214/high-purity-germanium-detector-characterization-by-means-of-monte-carlo-simulation-through-application-of-geant4-toolkit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152214.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">120</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8671</span> The MoEDAL-MAPP* Experiment - Expanding the Discovery Horizon of the Large Hadron Collider</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=James%20Pinfold">James Pinfold</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The MoEDAL (Monopole and Exotics Detector at the LHC) experiment deployed at IP8 on the Large Hadron Collider ring was the first dedicated search experiment to take data at the Large Hadron Collider (LHC) in 2010. It was designed to search for Highly Ionizing Particle (HIP) avatars of new physics such as magnetic monopoles, dyons, Q-balls, multiply charged particles, massive, slowly moving charged particles and long-lived massive charge SUSY particles. We shall report on our search at LHC’s Run-2 for Magnetic monopoles and dyons produced in p-p and photon-fusion. In more detail, we will report our most recent result in this arena: the search for magnetic monopoles via the Schwinger Mechanism in Pb-Pb collisions. The MoEDAL detector, originally the first dedicated search detector at the LHC, is being reinstalled for LHC’s Run-3 to continue the search for electrically and magnetically charged HIPs with enhanced instantaneous luminosity, detector efficiency and a factor of ten lower thresholds for HIPs. As part of this effort, we will search for massive l long-lived, singly and multiply charged particles from various scenarios for which MoEDAL has a competitive sensitivity. An upgrade to MoEDAL, the MoEDAL Apparatus for Penetrating Particles (MAPP), is now the LHC’s newest detector. The MAPP detector, positioned in UA83, expands the physics reach of MoEDAL to include sensitivity to feebly-charged particles with charge, or effective charge, as low as 10-3 e (where e is the electron charge). Also, In conjunction with MoEDAL’s trapping detector, the MAPP detector gives us a unique sensitivity to extremely long-lived charged particles. MAPP also has some sensitivity to long-lived neutral particles. The addition of an Outrigger detector for MAPP-1 to increase its acceptance for more massive milli-charged particles is currently in the Technical Proposal stage. Additionally, we will briefly report on the plans for the MAPP-2 upgrade to the MoEDAL-MAPP experiment for the High Luminosity LHC (HL-LHC). This experiment phase is designed to maximize MoEDAL-MAPP’s sensitivity to very long-lived neutral messengers of physics beyond the Standard Model. We envisage this detector being deployed in the UGC1 gallery near IP8. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LHC" title="LHC">LHC</a>, <a href="https://publications.waset.org/abstracts/search?q=beyond%20the%20standard%20model" title=" beyond the standard model"> beyond the standard model</a>, <a href="https://publications.waset.org/abstracts/search?q=dedicated%20search%20experiment" title=" dedicated search experiment"> dedicated search experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=highly%20ionizing%20particles" title=" highly ionizing particles"> highly ionizing particles</a>, <a href="https://publications.waset.org/abstracts/search?q=long-lived%20particles" title=" long-lived particles"> long-lived particles</a>, <a href="https://publications.waset.org/abstracts/search?q=milli-charged%20particles" title=" milli-charged particles"> milli-charged particles</a> </p> <a href="https://publications.waset.org/abstracts/167524/the-moedal-mapp-experiment-expanding-the-discovery-horizon-of-the-large-hadron-collider" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167524.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">68</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8670</span> Consideration of Failed Fuel Detector Location through Computational Flow Dynamics Analysis on Primary Cooling System Flow with Two Outlets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sanghoon%20Bae">Sanghoon Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanju%20Cha"> Hanju Cha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Failed fuel detector (FFD) in research reactor is a very crucial instrument to detect the anomaly from failed fuels in the early stage around primary cooling system (PCS) outlet prior to the decay tank. FFD is considered as a mandatory sensor to ensure the integrity of fuel assemblies and mitigate the consequence from a failed fuel accident. For the effective function of FFD, the location of them should be determined by contemplating the effect from coolant flow around two outlets. For this, the analysis on computational flow dynamics (CFD) should be first performed how the coolant outlet flow including radioactive materials from failed fuels are mixed and discharged through the outlet plenum within certain seconds. The analysis result shows that the outlet flow is well mixed regardless of the position of failed fuel and ultimately illustrates the effect of detector location. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computational%20flow%20dynamics%20%28CFD%29" title="computational flow dynamics (CFD)">computational flow dynamics (CFD)</a>, <a href="https://publications.waset.org/abstracts/search?q=failed%20fuel%20detector%20%28FFD%29" title=" failed fuel detector (FFD)"> failed fuel detector (FFD)</a>, <a href="https://publications.waset.org/abstracts/search?q=fresh%20fuel%20assembly%20%28FFA%29" title=" fresh fuel assembly (FFA)"> fresh fuel assembly (FFA)</a>, <a href="https://publications.waset.org/abstracts/search?q=spent%20fuel%20assembly%20%28SFA%29" title=" spent fuel assembly (SFA)"> spent fuel assembly (SFA)</a> </p> <a href="https://publications.waset.org/abstracts/73722/consideration-of-failed-fuel-detector-location-through-computational-flow-dynamics-analysis-on-primary-cooling-system-flow-with-two-outlets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73722.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">240</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8669</span> Reliability of Swine Estrous Detector Probe in Dairy Cattle Breeding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20O.%20Leigh">O. O. Leigh</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20C.%20Agbugba"> L. C. Agbugba</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20O.%20Oyewunmi"> A. O. Oyewunmi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20E.%20Ibiam"> A. E. Ibiam</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hassan"> A. Hassan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Accuracy of insemination timing is a key determinant of high pregnancy rates in livestock breeding stations. The estrous detector probes are a recent introduction into the Nigerian livestock farming sector. Many of these probes are species-labeled and they measure changes in the vaginal mucus resistivity (VMR) during the stages of the estrous cycle. With respect to size and shaft conformation, the Draminski® swine estrous detector probe (sEDP) is quite similar to the bovine estrous detector probe. We investigated the reliability of the sEDP at insemination time on two farms designated as FM A and FM B. Cows (Bunaji, n=20 per farm) were evaluated for VMR at 16th h post standard OvSynch protocol, with concurrent insemination on FM B only. The difference in the mean VMR between FM A (221 ± 24.36) Ohms and FM B (254 ± 35.59) Ohms was not significant (p > 0.05). Sixteen cows (80%) at FM B were later (day 70) confirmed pregnant via rectal palpation and calved at term. These findings suggest consistency in VMR evaluated with sEDP at insemination as well as a high predictability for VMR associated with good pregnancy rates in dairy cattle. We conclude that Draminski® swine estrous detector probe is reliable in determining time of insemination in cattle breeding stations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cattle" title="dairy cattle">dairy cattle</a>, <a href="https://publications.waset.org/abstracts/search?q=insemination" title=" insemination"> insemination</a>, <a href="https://publications.waset.org/abstracts/search?q=swine%20estrous%20probe" title=" swine estrous probe"> swine estrous probe</a>, <a href="https://publications.waset.org/abstracts/search?q=vaginal%20mucus%20resistivity" title=" vaginal mucus resistivity"> vaginal mucus resistivity</a> </p> <a href="https://publications.waset.org/abstracts/108250/reliability-of-swine-estrous-detector-probe-in-dairy-cattle-breeding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108250.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">124</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8668</span> Research on Development and Accuracy Improvement of an Explosion Proof Combustible Gas Leak Detector Using an IR Sensor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gyoutae%20Park">Gyoutae Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Seungho%20Han"> Seungho Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Byungduk%20Kim"> Byungduk Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Youngdo%20Jo"> Youngdo Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Yongsop%20Shim"> Yongsop Shim</a>, <a href="https://publications.waset.org/abstracts/search?q=Yeonjae%20Lee"> Yeonjae Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Sangguk%20Ahn"> Sangguk Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiesik%20Kim"> Hiesik Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jungil%20Park"> Jungil Park </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we presented not only development technology of an explosion proof type and portable combustible gas leak detector but also algorithm to improve accuracy for measuring gas concentrations. The presented techniques are to apply the flame-proof enclosure and intrinsic safe explosion proof to an infrared gas leak detector at first in Korea and to improve accuracy using linearization recursion equation and Lagrange interpolation polynomial. Together, we tested sensor characteristics and calibrated suitable input gases and output voltages. Then, we advanced the performances of combustible gaseous detectors through reflecting demands of gas safety management fields. To check performances of two company's detectors, we achieved the measurement tests with eight standard gases made by Korea Gas Safety Corporation. We demonstrated our instruments better in detecting accuracy other than detectors through experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=accuracy%20improvement" title="accuracy improvement">accuracy improvement</a>, <a href="https://publications.waset.org/abstracts/search?q=IR%20gas%20sensor" title=" IR gas sensor"> IR gas sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20leak" title=" gas leak"> gas leak</a>, <a href="https://publications.waset.org/abstracts/search?q=detector" title=" detector"> detector</a> </p> <a href="https://publications.waset.org/abstracts/47808/research-on-development-and-accuracy-improvement-of-an-explosion-proof-combustible-gas-leak-detector-using-an-ir-sensor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47808.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">391</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=energy%20detector&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=energy%20detector&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=energy%20detector&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=energy%20detector&page=5">5</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=energy%20detector&page=6">6</a></li> <li class="page-item"><a class="page-link" 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