Math Programs & Projects | |
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Magnetically Trapped Neutron Lifetime Experiment
Last Updated Date: 06/27/2012 This program is a collaborative effort between NIST and NC State. It is designed to measure the neutron beta-decay lifetime t n using a … more
Neutron Device Calibrations
Last Updated Date: 06/27/2012 NIST provides the national reference for the calibration of neutron radiation detectors and for neutron personnel dosimeters. more
New Calibration Service for 14 MeV Neutron Generators
Last Updated Date: 06/27/2012 A new calibration service for 14 MeV neutron generators is being developed. The calibrations may be done at NIST or at a customer site, … 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 … 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
Modeling and Simulation of Nanofabrication
Last Updated Date: 03/09/2012 Most manufacturing has historically been based on top-down fabrication and assembly. With rapid advances in nanotechnology, there is … more |
Contact
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