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Energy Programs & Projects

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Development of Epoxy Based Ge-68 Standard Phantom Sources
Last Updated Date: 06/27/2012

The use of imaging data for staging of disease, treatment planning, and monitoring of patient response continues to increase. In these types of … more

A Novel Optical Technique for Rapid Detection of Neutrons
Last Updated Date: 06/27/2012

Almost every instrument at the NCNR and other neutron scattering facilities depends on 3 He proportional tubes because of their high efficiency, … more

X-Ray Standards
Last Updated Date: 06/26/2012

A new free-air ionization chamber has been built to eventually replace the Wyckoff-Attix chamber, which has been used at NIST as a primary x-ray … more

Spectrometry of X-Ray Beams Used for Calibrations
Last Updated Date: 06/26/2012

Spectrometry measurements in the x-ray calibration ranges have been undertaken using a high-resolution HPGe detector both in the direct beam and … more

Advancing Alanine Dosimetry for Small Radiosurgery Fields
Last Updated Date: 06/26/2012

Research is underway to expand the current range (20 Gy to 200 kGy) of alanine dosimetry to include therapy level dosimetry (as low as 1 Gy) for … more

International Comparisons for Air Kerma and Absorbed Dose to Water from Gamma-ray Beams
Last Updated Date: 06/26/2012

A bilateral comparison was conducted between NIST and the International Atomic Energy Agency (IAEA) to support international efforts for … more

Standard Reference Data on Radiation Interactions
Last Updated Date: 06/26/2012

NIST has nearly five decades of experience in the development of critically evaluated, comprehensive databases of cross-section information for … more

Evaluation of Uncertainty in Brachytherapy Dosimetry
Last Updated Date: 06/26/2012

NIST is participating in Task Group # 138 (TG-138) of the American Association of Physicists in Medicine (AAPM), AAPM Recommendations on Assessing … more

Calibrations of a Miniature X-ray Source Used for Electronic Brachytherapy
Last Updated Date: 06/26/2012

A new laboratory dedicated to establishing a national primary air-kerma rate standard for Xoft's AXXENT™ miniature x-ray source has been … more

Accelerator Facilities
Last Updated Date: 06/26/2012

The Radiation and Biomolecular Physics Division's accelerator facilities continue to support a broad range of research efforts in the areas of … more

Applications of Diagnostic X-ray Spectrometers
Last Updated Date: 06/26/2012

The Dosimetry Group designs, fabricates, and calibrates bent-crystal optics and diagnostic spectrometers for customers around the world. more

Expansion of the NIST Law Enforcement Test Bed for Trace Contraband Detection
Last Updated Date: 06/04/2012

The terrorist attacks of September 11, 2001, led to an unprecedented deployment of technologies in the field designed to screen people and their … more

WWV Broadcast Format
Last Updated Date: 12/22/2011

WWV Broadcast Format

Improved quantitative medical CT imaging
Last Updated Date: 10/03/2011

Develop precision calibration standards for accurate determination of feature sizes in computed tomography images, to improve reliability of … more

Electric Power Metrology and the Smart Grid
Last Updated Date: 10/03/2011

Our country's way of life depends on the electric power distribution system. Keeping the national electric grid in good working order -- and … more

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