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Energy Programs & Projects

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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

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

Air Kerma Measurements in High Energy X-ray Beams
Last Updated Date: 03/13/2013

Cargo-inspection systems employ high-energy x-ray beams from accelerators. These systems are designed to detect potential threats that may be … more

Small-Field Therapy Dosimetry Using Alanine/EPR
Last Updated Date: 03/13/2013

NIST has an ongoing program in small-field therapy dosimetry studies using alanine/EPR.

Absorbed Dose to Water and Air Kerma Calibrations in Co-60 Therapy Level Gamma-Ray Beams
Last Updated Date: 03/13/2013

Three dosimetry calibration laboratories accredited by the American Association of Physicists in Medicine (AAPM) routinely perform calibrations of … more

Air Kerma Calibrations in Radiation Protection Level 137Cs and 60Co Gamma Ray Beams
Last Updated Date: 03/13/2013

The Dosimetry Group maintains and disseminates the national measurement standards for air-kerma (exposure) from 137 Cs and 60 Co gamma-ray beams   … more

National Air-Kerma Standard for Electronic Brachytherapy
Last Updated Date: 03/13/2013

The Dosimetry Group has developed a new facility for the calibration of the Xoft miniature x-ray source, which provides low-energy x-rays (< 50 … more

Illicit Trafficking of Radioactive Materials
Last Updated Date: 03/13/2013

The National Institute of Standard and Technology (NIST) is working in the development of ANSI/IEEE and IEC standard for the detection of illicit … more

Springback
Last Updated Date: 03/13/2013

Elastic springback compensation is a long-standing issue for formed sheet automotive components.  The ability to predict the magnitude of … more

Ba-133 Standard
Last Updated Date: 03/11/2013

The International Atomic Energy Agency (IAEA) recently initiated a Cooperative Research Project  (CRP) entitled “Development of Quantitative … more

Automated Multi-Sample Ionization Chamber for Radioactivity Standards
Last Updated Date: 03/11/2013

NIST radioactivity standards for gamma-ray emitting radionuclides are maintained as calibration factors for an automated ionization chamber.

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

Xray Stress Measurement
Last Updated Date: 03/07/2013

Using X-ray diffraction techniques one can measure the full stress tensor just inside the surface of a sheet metal specimen under applied load.  … 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

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