Math Programs & Projects | |
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Measurement Science for Complex Information Systems
Last Updated Date: 03/09/2013 This project aims to develop and evaluate a coherent set of methods to understand behavior … more
Photon Absorbed-Dose-to-Water Primary Standards
Last Updated Date: 03/08/2013 Computational and experimental studies to obtain correction factors for heat defect, heat transfer and scattering/perturbation for the water … more
International Comparison of Lu-177
Last Updated Date: 03/05/2013 There has been increasing interest during the past 10 years in the use of 177 Lu for radionuclide-based radiotherapy for certain types of cancers. … more
Small-Field Therapy Dosimetry using EPR
Last Updated Date: 03/05/2013 NIST has an ongoing program in small-field therapy dosimetry studies using alanine/EPR.
A Study of the Irradiation-Temperature Coefficient for Alanine Film and Pellet Dosimeters at Elevated Temperature
Last Updated Date: 03/01/2013 Correcting the response of a dosimeter for the average temperature during irradiation processing improves the accuracy of the dose … more
Advanced X-ray Systems for the Detection of Special Nuclear Materials
Last Updated Date: 02/27/2013 The Dosimetry Group provides support to the Domestic Nuclear Detection Office (DNDO) of the Department of Homeland Security (DHS) for their … more
Comparison of ANSI N42.46 and IEC 62523
Last Updated Date: 02/27/2013 We are undertaking a comparison of the relative performance of ANSI N42.46 and IEC 62523 consensus standards for x-ray cargo and vehicle screening. more
Theoretical Dosimetry and Radiation-Transport Calculations
Last Updated Date: 02/27/2013 The fundamental photon and charged particle interaction data and the radiation transport methods, pioneered and developed at NIST to calculate the … more
Calibration of Low-Energy Photon Brachytherapy Sources
Last Updated Date: 02/27/2013 Small radioactive "seed" sources used in prostate brachytherapy, containing the radionuclide 103 Pd, 125 I, or 131 Cs, are calibrated in … more
The Development of New Reference Standards for Digital Mammography
Last Updated Date: 02/27/2013 New NIST reference mammography beams using a tungsten target and silver, rhodium, molybdenum and aluminum filters at 20 kV to 50 kV have been … more
NIST Work in Support of the Navy Dosimetry Program
Last Updated Date: 02/27/2013 The U.S. Navy uses thermoluminescent dosimeters (TLDs) to monitor personnel for radiation exposure.
X-ray Security-Screening Standards for Homeland Security
Last Updated Date: 02/27/2013 The primary objective of this project is to assure the technical performance and radiation safety of the nation’s x-ray and gamma-ray … more
Development of a New Cs137 Gamma-ray Calibration Facility
Last Updated Date: 02/26/2013 The construction of a new primary calibration facility for air kerma measurements has been completed. It delivers a collimated 137Cs gamma-ray … more
Reactivity of Nanoparticle Catalysts
Last Updated Date: 02/26/2013 Transition metal nanoparticle catalysts show great promise as the key enabling breakthrough for the realization of efficient and economical fuel … more
Prediction of Global Warming Potential
Last Updated Date: 02/26/2013 The global warming potential (GWP) of a number of compounds used by U.S. industry is not known or poorly known. Working with the EPA, a set of … more |
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