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Part of Brookhaven National Lab's Advanced Technology Research Office.</div> <div id="doeLogoContainer"> <a id="doeLogoLink" title="DOE Office of Science" href="http://science.energy.gov/"> <img class="DOElogo black" title="DOE Office of Science" src="/assets/global/images/logo-doe-black-200px.png" /> <img class="DOElogo white" title="DOE Office of Science" src="/assets/global/images/logo-doe-white-500px.png" /> </a> </div> </div> </div> </div> <div class="container_24" id="siteMenuContainer"> <div class="grid_24"> <ul id="siteMenu"> <li><a href="https://www.bnl.gov/instrumentation/">Home</a> <li> <a href="#">Sensors</a> <ul> <li><a href="https://www.bnl.gov/instrumentation/sensors/">Overview</a> <li><a href="https://www.bnl.gov/instrumentation/sensors/silicon-sensors.php">Silicon</a> <li><a href="https://www.bnl.gov/instrumentation/sensors/germanium.php">Germanium</a></li> <li><a href="https://www.bnl.gov/instrumentation/sensors/diamond.php">Diamond</a></li> <li><a href="https://www.bnl.gov/instrumentation/sensors/semiconductor-detectors.php">Room-temp. 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Capabilities</a> </ul> </div> <div class="grid_15 suffix_1" style="margin-bottom:2em;"> <h2>Irradiation Sources</h2> <p class="font-plus-2">Electronics and structural materials intended for use in high-energy physics experiments, space, or other environments where significant amounts of damaging radiation are present must be tested and qualified for radiation effects before they are deployed. The Instrumentation Department鈥檚 solid-state gamma-ray irradiation facility, neutron generator, and other small neutron sources provide capabilities to perform these testing and characterization studies in air.</p> <h3>Our Capabilities</h3> <ul> <li>Determination of long-term radiation exposure effects with an ionizing radiation source (~60Co, 450 Ci activity in 2020) capable of operating continuously without interruption</li> <li>Characterization of handheld-size samples at high dose rates (up to 4脳104 rad/hr, or 1 Mrad over one day) and samples as large as 60 cm at low dose rates (down to 100 rad/hr) </li> <li>Implementation of complex test setups near the radiation source, allowing for studies at temperatures ranging from cryogenic to elevated and under vacuum or in selected gas atmospheres </li> <li>Movement of shielded enclosure to modify dose rate for dynamic studies, even during irradiation </li> <li>Measurement of low-level displacement damage via neutrons (14 MeV neutron generator and sealed sources) </li> </ul> </div> <div class="grid_8"> <div class="sidebar"> <img alt="photo of prototype stave" src="../images/facilities/d2811219-stave.jpg"> <p>A prototype stave鈥攁 carbon composite support structure on which 28 silicon detectors are mounted鈥攖hat has been partially assembled with 14 modules mounted on the side facing the <sup>60</sup>Co source. Approximately 400 staves are used to build the barrel portion of the <a href="https://atlas.cern" target="_blank">ATLAS</a> Silicon Strip Detector. This prototype is being used to test the radiation hardness of the thermal gel used to attach the silicon detectors. </p> </div> </div> </div> <div class="caseStudies"> <div class="container_24"> <div class="grid_24"> <h2>Case Studies</h2> </div> <div class="grid_8"> <h3>Simulating the ATLAS Environment</h3> <p>Readout application-specific integrated circuits (ASICs) for the Silicon Strip Detector <a href="https://atlas.cern" target="_blank">ATLAS</a> High-Luminosity Large Hadron Collider (LHC) Upgrade consume more power with increasing ionizing radiation dose up to a peak power consumption. Afterward, the power consumption decreases with additional radiation dose, approaching its original value. The ability to reproduce an environment similar to that of the ATLAS experiment and simultaneously irradiate multiple setups over months was indispensable to the upgrade group in characterizing this behavior. These measurements validated the hypothesis that pre-irradiation of the ASICs prevents the power increase from occurring鈥攁n approach adopted for the upgrade. </p> </div> <div class="grid_8"> <h3>Quantification of Radiation Damage </h3> <p>The Electron-Ion Collider (EIC) is a nuclear physics research facility that will be built at Brookhaven. Essential to the success of EIC are high-quality, optically clear Cherenkov radiation detectors immune to damage from ionizing radiation. Using our gamma-ray irradiation facility to irradiate optical samples and a monochromator to quantify radiation damage, the EIC team is identifying the best materials for these detectors. </p> </div> <div class="grid_8"> <h3>sPHENIX SiPM Radiation Damage</h3> <p>The sPHENIX nuclear physics experiment at Brookhaven鈥檚 Relativistic Heavy Ion Collider will probe the nature of the quark-gluon plasma鈥攁 state of matter that filled the early universe鈥攂y colliding atomic nuclei at high energies. The sPHENIX detector recording the particles emerging from these collisions has more than 100,000 silicon photomultipliers (SiPMs), which will be subjected to high fluxes of neutrons and doses of gamma radiation. Prior to deployment in the detector, sPHENIX collaborators measured the radiation damage of representative SiPMs during and after irradiation in our gamma-ray irradiation facility. These data were essential in optimizing the performance of the SiPMs and other electronic devices for the final detector. </p> </div>  </div> </div> </div> <div id="topOfPage"><span class="fa fa-chevron-circle-up fa-lg topOfPageTrigger"></span></div> <div class="footer" id="footer" > <div class="container_24"> <div class="grid_6"> <h3 id="BNL">Brookhaven National Laboratory</h3> <p>PO Box 5000<br/> Upton, NY 11973-5000<br/> (631) 344-8000</p> <p><a id="contactUs" class="extrasmall white button" href="https://www.bnl.gov/contact-us/">Contact us</a></p> <ul class="socialMediaIcons"> <li><a target="_blank" href="https://twitter.com/BrookhavenLab" title="Follow Us on 𝕏"><i class="fa-brands fa-square-x-twitter fa-2x"></i></a> <li><a target="_blank" href="https://www.facebook.com/brookhavenlab" title="Follow Us on Facebook"><span class="fa fa-facebook-square fa-2x"></span></a> <li><a target="_blank" href="https://www.instagram.com/brookhavenlab/" title="Follow Us on Instagram"><span class="fa fa-instagram fa-2x"></span></a> <li><a target="_blank" href="https://www.linkedin.com/company/brookhavenlab/" title="Follow Us on LinkedIn"><span class="fa fa-linkedin-square fa-2x"></span></a> <li><a target="_blank" href="https://www.youtube.com/BrookhavenLab" title="Follow Us on YouTube"><span class="fa fa-youtube-square fa-2x"></span></a> <li><a target="_blank" href="http://www.flickr.com/brookhavenlab/" title="Follow Us on Flickr"><span class="fa fa-flickr fa-2x"></span></a> </ul> </div> <div class="grid_3"> <ul class="linkList2"> <li><a href="https://www.bnl.gov/science/">Our Science</a></li> <li><a href="https://www.bnl.gov/about/">About</a></li> <li><a href="https://www.bnl.gov/about/history/">History</a></li> <li><a href="https://www.bnl.gov/about/org/">Leadership</a></li> <li><a href="https://www.bnl.gov/visiting/">Visiting the Lab</a></li> <li><a href="https://www.bnl.gov/siteindex/">Site Index</a></li> <li><a href="https://www.bnl.gov/directory/">Staff Directory</a></li> </ul> </div> <div class="grid_3"> <ul class="linkList2"> <li><a target="_blank" href="https://jobs.bnl.gov/">Careers</a></li> <li><a href="https://www.bnl.gov/science/facilities.php">Facilities</a></li> <li><a href="https://www.bnl.gov/guv/">Guest Center</a></li> <li><a href="https://www.bnl.gov/partner/">Partnerships</a></li> <li><a href="https://www.bnl.gov/ppm/">For Vendors</a></li> <li><a id="deptLink" href="javascript:void(0);">Departments</a></li> <li><a href="https://www.bnl.gov/visiting/events/">Public Events</a></li> </ul> </div> <div class="grid_4"> <ul class="linkList2 lastList"> <li><a href="https://www.bnl.gov/diversity/">Diversity, Equity & Inclusion</a></li> <li><a href="https://www.bnl.gov/techtransfer/">Technology Licensing</a></li> <li><a href="https://www.bnl.gov/externalaffairs/">Stakeholder Relations</a></li> <li><a href="https://www.bnl.gov/education/">Students & Educators</a></li> <li><a href="https://www.bnl.gov/about/sustainability/">Sustainability</a></li> <li><a href="https://www.bnl.gov/privacy/">Privacy and Security Notice</a></li> <li><a target="_blank" href="https://doe.responsibledisclosure.com/hc/en-us">Vulnerability Disclosure Program</a></li> </ul> </div> <div class="grid_7 prefix_1"> <h3 id="BSA">Brookhaven Science Associates</h3> <p>Brookhaven Science Associates manages and operates Brookhaven National Laboratory on behalf of the U.S. Department of Energy's Office of Science. 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