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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

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

Designing the Nanoworld: Nanostructures, Nanodevices, and Nanooptics
Last Updated Date: 05/30/2012

Nanoscale theory of the electronic, optical and mechanical properties of ultrasmall structures, devices and their dynamical operation and the … more

Spectroradiometry of sources
Last Updated Date: 12/15/2011

Calibration standards for spectral radiance and spectral irradiance are disseminated in the form of transfer lamps and integrating sphere sources. … more

Ultracold atoms and molecules
Last Updated Date: 12/08/2011

Theory for ultracold atomic and molecular collisions and interactions is being developed and exploited to gain precise control over these … more

Aperture area measurements
Last Updated Date: 11/03/2011

Radiometric and photometric measurements require defining apertures. The accuracy to which these measurements can be accomplished requires … more

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

OOF: Finite Element Analysis of Microstructures
Last Updated Date: 02/17/2011

The OOF project seeks to provide flexible software for finite-element modeling the behavior of real microstructures, with meshes derived from … more

Advanced Linear and Nonlinear Optical Metrology in support of next-generation Lithography
Last Updated Date: 11/09/2010

High precision linear and nonlinear optics of next-generation lithographic techniques is measured and characterized to enable these technologies. more

Atomic Wavefunctions
Last Updated Date: 10/05/2010

NIST scientists are actively developing new algorithms for extremely high-accuracy computation of non-relativistic eigenstates of … more

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