CINXE.COM

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class="panel-separator"></div><div class="panel-pane pane-entity-field pane-node-body no-title block" > <div class="pane-inner clearfix"> <div class="pane-content"> <div class="field field-name-body field-type-text-with-summary field-label-hidden view-mode-_custom_display"><div class="field-items"><div class="field-item even"><p>Contact: <a href="https://www.ornl.gov/staff-profile/shelly-x-ren" target="_blank">Shelly Ren</a></p> <p>Data and computing resources are provided to users at the High Flux Isotope Reactor (HFIR) and the Spallation Neutron Source (SNS) via beam line computers and a remote analysis cluster.</p> <p><strong>Getting Access to Resources</strong></p> <p>Access to HFIR and SNS computing resources requires an XCAMS User ID. When an account is created in the <a href="https://user.ornl.gov/Account/Login">ORNL Guest Portal</a>, an XCAMS user ID is issued and can be used to request access to computer resources. If you have submitted a proposal, you already have an XCAMS User ID. Log into your account to access the computer resources using your existing credentials.</p> <p>If you have forgotten your password, request a <a href="https://user.ornl.gov/Account/ForgottenPassword?reqid=">password change</a>.</p> <p>As a Neutron Sciences user, you can view, analyze and download your data from our remote computing resources. Options for access are described on <a href="https://analysis.sns.gov">analysis.sns.gov</a>, including a web interface to a workstation desktop, or using secure file transfer protocol (secureFTP) to download your data.</p> <p>Access to SNS data sets stored on ORNL systems is restricted to the Principal Investigator (PI) and the proposal team identified in the Integrated Proposal Tracking System (<a href="https://ipts.ornl.gov">IPTS</a>). The PI and proposal editors can add additional members to the IPTS to allow them to access the data. (The newly added proposal team member will need to log out of any existing analysis.sns.gov sessions and log in again for the changes to take effect.) Users are responsible for the long term preservation of their data and meeting data preservation requirements of their funding agencies or publishers. </p> <h2>Instrument Data Acquisition and Controls</h2> <p>Contact: <a href="https://www.ornl.gov/staff-profile/bogdan-vacaliuc" target="_blank">Bogdan Vacaliuc</a> and <a href="https://www.ornl.gov/staff-profile/rob-o-knudson-iv" target="_blank">Rob Knudson</a></p> <p>The Instrument Data Acquisition and Controls Group in the Neutron Technologies Division provides the software, electronics and computing infrastructure for operating the neutron scattering beam lines. This includes</p> <ul> <li>the electronics for acquiring neutron scattering data and data from other high-speed data sources</li> <li>software for acquiring, processing and managing data</li> <li>software and user interfaces for beam line control, experiment setup, data collection and experiment automation</li> <li>the computing, network and data storage for data acquisition, data reduction and user remote access.</li> </ul> <p>The software is built using the <a href="https://epics-controls.org">EPICS</a> toolkit and <a href="http://controlsystemstudio.org">Control System Studio</a>. SNS/HFIR are active members are of the EPICS collaboration. </p> <h2>Scientific Computing</h2> <p>Contact: <a href="https://csmd.ornl.gov/profile/addi-malviya-thakur" target="_blank">Addi Malviya-Thakur </a></p> <p><a href="https://analysis.sns.gov/">Remote Analysis Service</a> provides computer resources to assist in reducing and analyzing data acquired on the instruments. This site consists of a group of Linux machines, with sufficient memory to hold data sets and multiple cores for speed of processing. Results or data can be downloaded using the standard secure file transfer protocol (SFTP) tools described on the remote analysis service website.</p> <p><strong>High Performance Computing resources</strong></p> <p>Limited access to High Performance Computing (HPC) resources and some support for modeling and data analysis are provided for work related to data collected at HFIR and SNS. This support is for Density Functional calculations for Molecular Spectroscopy and Molecular Dynamics for Quasi Elastic scattering.</p> <p>Indicate in the Instrument Selection section of your proposal in IPTS if computational support for High Performance Computing Resources for modeling and data analysis is needed, or if you have other codes that are ready to run on an HPC platform such as the <a href="https://www.olcf.ornl.gov/">Oak Ridge Leadership Computing Facility (OLCF)</a> or the <a href="http://www.nersc.gov/">National Energy Research Scientific Computing Center (NERSC)</a> resources.</p> <p>For more information on whether HPC is applicable for your research, contact <a href="https://www.ornl.gov/staff-profile/thomas-e-proffen">Thomas Proffen</a>.</p> <p><strong>Jupyter Notebooks</strong></p> <p>ORNL uses Jupyter notebooks running python that are accessible at <a href="https://jupyter.sns.gov/hub/login">jupyter.sns.gov</a>. There are notebooks for Neutron Imaging, Triple Axis Spectroscopy, and Monte Carlo Ray tracing with Mcvine.</p> <h2>Software for Data Analysis and Visualization</h2> <p>Software supported and developed by ORNL</p> <div class="node-users-data"> <table class="striped"> <tbody> <tr> <th>Software</th> <th>Description</th> <th>Applicable Instruments</th> </tr> <tr> <td><a href="http://www.mantidproject.org/Main_Page">Mantid</a></td> <td>General data reduction and visualization software</td> <td>SNS Instruments, HFIR SANS, HB-3A</td> </tr> <tr> <td><a href="http://www.sasview.org/">SasView</a></td> <td>SANS Analysis</td> <td>SANS Instruments</td> </tr> <tr> <td><a href="https://github.com/neutrons/RefRed">RefRed</a></td> <td>Reflectometry Reduction (Liquids reflectometer)</td> <td>Liquid Reflectometers</td> </tr> <tr> <td>QuickNXS</td> <td>Reflectometry Reduction (Magnetism reflectometer)</td> <td>Magnetism Reflectometer</td> </tr> <tr> <td>DRTSANS</td> <td>Data reduction for SANS instruments</td> <td>EQSANS, GP-SANS, BIOSANS</td> </tr> <tr> <td><a href="https://github.com/neutrons/addie">Addie</a></td> <td>Powder Diffraction PDF Reduction</td> <td>NOMAD, POWGEN</td> </tr> <tr> <td><a href="https://github.com/neutrons/PyVDrive">VDrive</a></td> <td>Engineering Diffraction Reduction</td> <td>VULCAN</td> </tr> <tr> <td>PYRS</td> <td>Data reduction and analysis for the HIDRA instrument</td> <td>HIDRA</td> </tr> <tr> <td>IMARS3D</td> <td>Neutron Imaging CT reconstruction software</td> <td>MARS, SNAP, VENUS</td> </tr> <tr> <td>IBEATLES</td> <td>Neutron imaging Bragg Edge analysis</td> <td>SNAP, SNAP, VENUS</td> </tr> <tr> <td><a href="https://github.com/rosswhitfield/javelin">Javelin</a></td> <td>Diffuse Scattering Modeling</td> <td>TOPAZ, CORELLI, WAND</td> </tr> <tr> <td><a href="https://github.com/neutrons/CrystalPlan">CrystalPlan</a></td> <td>Experiment planning for Single Crystal Diffractometers</td> <td>TOPAZ, MANDI, CORELLI, IMAGINE</td> </tr> <tr> <td><a href="http://neutronpy.github.io/">NeutronPY</a></td> <td>Data analysis for Triple Axis Spectrometers</td> <td>Triple Axis Spectrometers</td> </tr> <tr> <td>Oclimax/QClimax</td> <td>Data analysis for VISION and Basis</td> <td>Spectrometers</td> </tr> <tr> <td><a href="https://github.com/SpinWaveGenie/SpinWaveGenie">SpinWaveGenie</a></td> <td>Spin Wave Calculations</td> <td>Spectrometers</td> </tr> </tbody> </table> </div> <p> </p> <p>Software for which ORNL provides some support</p> <div class="node-users-data"> <table class="striped"> <tbody> <tr> <th>Software</th> <th>Description</th> <th>Applicable Instruments</th> </tr> <tr> <td><a href="https://subversion.xray.aps.anl.gov/trac/EXPGUI">GSAS & EXPGUI</a></td> <td>Rietveld Refinement</td> <td>Powder Diffractometers</td> </tr> <tr> <td><a href="https://www.ill.eu/sites/fullprof/">Fullprof</a></td> <td>Rietvel Refinement</td> <td>Powder Diffractometers</td> </tr> <tr> <td><a href="http://horace.isis.rl.ac.uk/Main_Page">Horace</a></td> <td>Single Crystal Spectroscopy Analysis</td> <td>CNCS, HYSPEC, ARCS, SEQUIOA</td> </tr> <tr> <td><a href="https://www.ncnr.nist.gov/dave/">DAVE</a></td> <td>Inelastic Analysis Software</td> <td>CNCS, HYSPEC, ARCS, SEQUIOA, BASIS</td> </tr> <tr> <td><a href="http://www.rmcprofile.org/Main_Page">RMCProfile</a></td> <td>Reverse Monte Carlo for Crystalline and Disordered Material</td> <td>Diffractometers</td> </tr> <tr> <td><a href="http://tproffen.github.io/DiffuseCode/">Discus</a></td> <td>Single Crystal Diffuse Modeling</td> <td>CORELLI, TOPAZ, WAND</td> </tr> <tr> <td><a href="https://github.com/reflectometry/refl1d">Refl1D</a></td> <td>Specular Reflectometry Fitting</td> <td>Reflectometers</td> </tr> <tr> <td><a href="http://www.topas-academic.net/">TOPAS</a></td> <td>Rietveld Refinement</td> <td>Powder Diffractometers</td> </tr> </tbody> </table> </div> <p> </p> <p>Other useful software</p> <div class="node-users-data"> <table class="striped"> <tbody> <tr> <th>Software</th> <th>Description</th> <th>Applicable Instruments</th> </tr> <tr> <td><a href="http://www.neutron.ethz.ch/research/resources/reslib.html">Reslib</a></td> <td>Triple Axis Spectrometer Resolution</td> <td>Triple Axis Spectrometers</td> </tr> <tr> <td><a href="http://www.diffpy.org/products/pdfgui.html">PDFgui</a></td> <td>Fittings of PDFS (Pair Distribution Function)</td> <td>NOMAD, POWGEN</td> </tr> <tr> <td><a href="http://www.diffpy.org/">Diffpy</a></td> <td>Analysis of PDFs</td> <td>NOMAD, POWGEN</td> </tr> <tr> <td><a href="https://www.psi.ch/spinw/">SpinW</a></td> <td>Spin Wave Calculations</td> <td>Spectrometers</td> </tr> <tr> <td>Sunny</td> <td>Spin Wave Calculations</td> <td>Spectrometers</td> </tr> </tbody> </table> <p> </p> <p> </p> </div> </div></div></div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="region region-sidebar-second sidebar"> <div class="panel-pane pane-custom pane-6 no-title block" > <div class="pane-inner clearfix"> <div 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