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Radiation Physics Programs & Projects

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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

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

NIST Calibrations of a Miniature X-Ray Source Used for Electronic Brachytherapy
Last Updated Date: 11/18/2010

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

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