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Physics Programs & Projects

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Theory of Transport in Graphene
Last Updated Date: 03/21/2013

Graphene, a single layer of carbon atoms, is one of the most likely materials to produce the next breakthrough in the electronics industry.  Ideal … more

Calibration of Beta-Particle Sources and Instruments for Radiation Protection
Last Updated Date: 03/21/2013

A calibration service for protection-level beta-particle sources and instrumentation has been in place at NIST for several years

Absorbed-Dose Measurements to Support Biologics Research
Last Updated Date: 03/20/2013

The Dosimetry Group have been working with Maryland-based biotech firm Sanaria Inc. that is planning to manufacture a new vaccine against malaria. more

Radionuclides by Anticoincidence Counting
Last Updated Date: 03/20/2013

The standardization of radionuclides by primary methods is the foundation for all the standards and services provided by the NIST radioactivity … more

Nanotribology for Nanomanufacturing
Last Updated Date: 03/20/2013

Tribology is the science and technology of interacting surfaces in relative motion and includes studies of friction, adhesion, lubrication, and … more

Liquid Scintillation Counting
Last Updated Date: 03/19/2013

The triple-to-double coincidence ratio (TDCR) method of liquid scintillation counting employs three detectors to facilitate the experimental … more

Ge-68, PET Scanner Clinical Trials
Last Updated Date: 03/19/2013

The interpretation of quantitative imaging data obtained from Positron Emission Tomography (PET) studies requires an understanding of the … more

International Comparison of Tc-99
Last Updated Date: 03/19/2013

An international measurement comparison for a 99 Tc solution hosted by National Physical Laboratory (NPL) of the UK, (CCRI(II)K-2. 99 Tc … more

Comparison of Co60 Absorbed Dose for High-Dose Dosimetry
Last Updated Date: 03/13/2013

NIST participated in a recent international comparison of standards for absorbed dose to water for 60 Co gamma radiation at radiation-processing … more

Dose/Dose-Rate Effects in Alanine Dosimetry
Last Updated Date: 03/13/2013

Check standards are used by the NIST Ionizing Radiation Division to monitor the performance of the alanine dosimetry system that is central to its … more

Applications of NIST Alanine/EPR Dosimetry to the Irradiation of Blood and Blood Products
Last Updated Date: 03/13/2013

At present, irradiation of blood products with ionizing energy is the only procedure known to prevent transfusion-associated graft-versus-host … more

Advanced X-ray Systems for the Detection of Special Nuclear Materials
Last Updated Date: 03/13/2013

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 Standards for Cargo and Vehicle Screening
Last Updated Date: 03/13/2013

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

New Reference Standards for Digital Mammography
Last Updated Date: 03/13/2013

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

National and International Standards for X-ray Security Screening Applications
Last Updated Date: 03/13/2013

The primary objective of this project is to assure the technical performance and radiation safety of the nation’s x-ray and gamma-ray security … more

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