1261 lines
90 KiB
Text
1261 lines
90 KiB
Text
<!DOCTYPE html>
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<html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# ">
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<head>
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<div class="entity-reference"> <a href="/news-events/news/2024/11/nist-study-probes-damaging-effects-radiation-qubits" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/11/18/tkid-circuit.png?itok=5i53R6mE" width="100" height="100" alt="Incoming radiation deposits energy into the TKID circuit." typeof="foaf:Image" />
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<h3 class="nist-teaser__title"><a href="/news-events/news/2024/11/nist-study-probes-damaging-effects-radiation-qubits"><span property="schema:name">NIST Study Probes the Damaging Effects of Radiation on Qubits</span>
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<div class="daterange"><time datetime="2024-11-19T12:00:00Z">November 19, 2024</time>
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<div property="schema:text" class="text-with-summary"> Qubits, the fundamental unit of quantum information, form the building blocks of quantum computers. Because qubits are not limited to the two states, “0” and “1
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<h3 class="nist-teaser__title"><a href="/news-events/news/2021/07/19th-international-workshop-low-temperature-detectors-ltd19"><span property="schema:name">19th International Workshop on Low Temperature Detectors (LTD19)</span>
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<div class="daterange"><time datetime="2021-07-29T12:00:00Z">July 29, 2021</time>
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</header>
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<div class="nist-teaser__content">
|
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<div property="schema:text" class="text-with-summary"> The 19th International Workshop on Low Temperature Detectors (LTD19) was an opportunity for researchers from around the world to exchange information about the
|
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|
||
</div>
|
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</div>
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<article
|
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about="/news-events/news/2019/04/ebits-improved-x-ray-vision-promises-astronomical-insights" typeof="schema:Article" class="nist-teaser"
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>
|
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<div class="nist-teaser__image">
|
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<div class="entity-reference"> <a href="/news-events/news/2019/04/ebits-improved-x-ray-vision-promises-astronomical-insights" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2019/04/17/cats-eye-nebula.jpg?itok=2BO0eavz" width="100" height="100" alt="Cat’s Eye Nebula" typeof="foaf:Image" />
|
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|
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<h3 class="nist-teaser__title"><a href="/news-events/news/2019/04/ebits-improved-x-ray-vision-promises-astronomical-insights"><span property="schema:name">EBIT’s Improved X-ray Vision Promises Astronomical Insights</span>
|
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|
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|
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<div class="daterange"><time datetime="2019-04-25T12:00:00Z">April 25, 2019</time>
|
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|
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|
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|
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|
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|
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|
||
<div property="schema:text" class="text-with-summary"> Look at an astronomical marvel like the Cat’s Eye Nebula at right, with an average gas temperature about twice as hot as the surface of the Sun. It seems
|
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|
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|
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|
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|
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|
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|
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<div class="text-with-summary"> Developments in radiotherapy have significantly increased the use of small fields in stereotactic procedures and IMRT fields composed of small fields. Ionization chambers are not always suitable where situations of high dose gradients, time-dose variance, and non-uniform beam distributions are
|
||
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|
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about="/programs-projects/radioanalytical-metrology" class="nist-teaser"
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|
||
<div class="text-with-summary"> The Group engages in a wide range of methods applicable to the detection and characterization of nuclear materials. The work can benefit environmental studies, waste remediation, naturally occurring radioactivity detection and characterization and general radioanalytical metrology. Expertise in
|
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|
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|
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|
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|
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about="/programs-projects/basic-metrology-dosedose-rate-effects-alanine-dosimetry" class="nist-teaser"
|
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|
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|
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|
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<h3 class="nist-teaser__title"><a href="/programs-projects/basic-metrology-dosedose-rate-effects-alanine-dosimetry"><span>Basic Metrology: Dose/Dose-Rate Effects in Alanine Dosimetry</span>
|
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|
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|
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<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
|
||
|
||
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|
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|
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|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> Check standards are used by the NIST Radiation Physics Division to monitor the performance of the alanine dosimetry system which is central to its high-dose transfer dosimetry service. These measurements are performed to confirm the operational readiness of the calibration curve. Deviations from the
|
||
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|
||
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|
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|
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about="/programs-projects/multiscale-structure-and-dynamics-advanced-technological-materials" class="nist-teaser"
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|
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|
||
<div class="entity-reference"> <a href="/programs-projects/multiscale-structure-and-dynamics-advanced-technological-materials" hreflang="en"><img loading="lazy" src="/sites/default/files/images/2017/07/06/usaxs_animation.gif" width="600" height="411" alt="USAXS animation" typeof="foaf:Image" />
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|
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|
||
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|
||
<h3 class="nist-teaser__title"><a href="/programs-projects/multiscale-structure-and-dynamics-advanced-technological-materials"><span>Multiscale structure and dynamics in advanced technological materials</span>
|
||
</a></h3>
|
||
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|
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<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
|
||
|
||
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|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> New technologies increasingly harness materials phenomena that operate across many length-scales: e.g., in selective gas adsorption, additive manufacturing, new alloy designs, or advanced concretes. To overcome technology barriers, it is no longer sufficient just to characterize the materials
|
||
|
||
</div>
|
||
|
||
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|
||
</div>
|
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<article
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about="/publications/bilateral-comparison-227th-activity-standards-between-npl-and-nist" class="nist-teaser"
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>
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<div class="nist-teaser__content-wrapper">
|
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<header>
|
||
<h3 class="nist-teaser__title"><a href="/publications/bilateral-comparison-227th-activity-standards-between-npl-and-nist"><span>A bilateral comparison of 227Th activity standards between NPL and NIST</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2025-02-03T12:00:00Z">February 3, 2025</time>
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||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__type">
|
||
<div class="nist-field nist-field--label-inline text-long">
|
||
<div class="nist-field__label">Author(s)</div>
|
||
<div class="nist-field__item">Andrew Fenwick, <span class="nist-author">Denis Bergeron</span>, Brittany Broder, Emma Bendall, <span class="nist-author">Jeffrey Cessna</span>, Sean Collins, <span class="nist-author">Leticia Pibida</span>, Natasha Ramirez, Elisa Napoli</div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> The National Physical Laboratory (United Kingdom) and the National Institute of Standards and Technology (United States) each determined the massic activity and
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
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||
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|
||
<div>
|
||
<article
|
||
about="/publications/characterization-transition-edge-sensors-decay-energy-spectrometry" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/publications/characterization-transition-edge-sensors-decay-energy-spectrometry"><span>Characterization of Transition Edge Sensors for Decay Energy Spectrometry</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2024-05-16T12:00:00Z">May 16, 2024</time>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__type">
|
||
<div class="nist-field nist-field--label-inline text-long">
|
||
<div class="nist-field__label">Author(s)</div>
|
||
<div class="nist-field__item"><span class="nist-author">Max Carlson</span>, <span class="nist-author">Ryan P. Fitzgerald</span>, <span class="nist-author">Galen O'Neil</span>, <span class="nist-author">Dan Schmidt</span></div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> By using a superconducting Transition Edge Sensor (TES) to measure the thermal energy of individual decay events with high energy resolution (goal of 1 keV at 5
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
|
||
</div>
|
||
<div>
|
||
<article
|
||
about="/publications/liquid-scintillation-efficiencies-gamma-ray-emission-intensities-and-half-life-gd-153" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/publications/liquid-scintillation-efficiencies-gamma-ray-emission-intensities-and-half-life-gd-153"><span>Liquid scintillation efficiencies, gamma-ray emission intensities, and half-life for Gd-153</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2023-11-09T12:00:00Z">November 9, 2023</time>
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||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__type">
|
||
<div class="nist-field nist-field--label-inline text-long">
|
||
<div class="nist-field__label">Author(s)</div>
|
||
<div class="nist-field__item"><span class="nist-author">Denis E. Bergeron</span>, <span class="nist-author">Jeffrey T. Cessna</span>, <span class="nist-author">Ryan P. Fitzgerald</span>, <span class="nist-author">Gulakhshan Hamad</span>, <span class="nist-author">Lizbeth Laureano-Perez</span>, <span class="nist-author">Leticia Pibida</span>, <span class="nist-author">Brian E. Zimmerman</span></div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> Gadolinium-153 was standardized for activity by live-timed anticoincidence counting and an ampoule was submitted to the international reference system (SIR)
|
||
|
||
</div>
|
||
|
||
</div>
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about="/publications/comparison-calibration-coefficients-vinten-ionization-chamber-simulated-using-four" class="nist-teaser"
|
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>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/publications/comparison-calibration-coefficients-vinten-ionization-chamber-simulated-using-four"><span>Comparison of Calibration coefficients for Vinten Ionization Chamber Simulated Using Four Monte Carlo Methods</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2023-10-17T12:00:00Z">October 17, 2023</time>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__type">
|
||
<div class="nist-field nist-field--label-inline text-long">
|
||
<div class="nist-field__label">Author(s)</div>
|
||
<div class="nist-field__item"><span class="nist-author">Brittany Broder</span>, <span class="nist-author">Denis E. Bergeron</span>, <span class="nist-author">Ryan P. Fitzgerald</span>, <span class="nist-author">Brian E. Zimmerman</span></div>
|
||
</div>
|
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|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> The Vinten 671 ionization chamber (VIC) was modelled using four Monte Carlo (MC) programs: EGS++, EGSnrc, Penelope, and TOPAS. VICs with well-characterized
|
||
|
||
</div>
|
||
|
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</div>
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about="/laboratories/tools-instruments/x-ray-backscatter-systems" class="nist-teaser"
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<h3 class="nist-teaser__title"><a href="/laboratories/tools-instruments/x-ray-backscatter-systems"><span>X-ray Backscatter Systems</span>
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<div class="nist-teaser__content">
|
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<div class="text-with-summary"> X-ray backscatter systems are used for the screening of personnel for hidden weapons and other contraband. Unlike conventional radiographic x-ray systems
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