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Physics Programs & Projects

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Geostationary Operations Environment Satellite R-Series Program (GOES-R) Extreme UV/X-ray Irradiance Sensor (EXIS) Calibration
Last Updated Date: 11/19/2012

Calibrations of the The Extreme ultraviolet/X-ray Irradiance Sensor (EXIS), which will be installed on the Geostationary Operations Environment … more

Photodetector Analysis for Biological Agent Detection
Last Updated Date: 11/16/2012

Photomultiplier tube (PMT) analysis with respect to PMT sensitivity and long-term stability using synchrotron radiation.

NIST Lyman-Alpha Neutron Detector (LAND)
Last Updated Date: 11/16/2012

The well-known interaction of low-energy neutrons and 3 He produces a proton and a triton with 764 keV of kinetic energy shared between the two … more

Bilateral Comparison of Spectral Responsivity in the Vacuum-Ultraviolet
Last Updated Date: 11/16/2012

To compare the calibration capabilities for the spectral responsivity in the vacuum-ultraviolet spectral region between 135 nm and 250 nm, PTB and … more

Long-Term Monitoring of the Ultraviolet Irradiance Scale
Last Updated Date: 11/16/2012

In 2004, the National Institute of Standards and Technology NIST established the ultraviolet spectral irradiance scale from 200 nm to 400 nm using … more

EUV Detector Calibrations
Last Updated Date: 11/16/2012

Transfer standard photodiodes may be purchased with a calibration in the range from 5 nm to 254 nm. Other detectors supplied by the customer may … more

NIST Stars
Last Updated Date: 11/16/2012

NIST Stars is an Innovations in Measurement Science project to create a catalog of stars whose top-of-the-atmosphere spectral flux has an SI … more

Spectral irradiance and radiance responsivity calibrations using uniform sources (SIRCUS)
Last Updated Date: 11/16/2012

SIRCUS is a reference facility for the calibration of detectors and radiometers for spectral irradiance responsivity and spectral radiance … more

Primary optical watt radiometer (POWR)
Last Updated Date: 11/16/2012

The Sensor Science Division of NIST realizes and maintains the unit of optical power (watt) with the NIST reference cryogenic radiometer, Primary … more

Infrared optical properties of materials and components
Last Updated Date: 11/15/2012

Accurate measurements of the optical properties of materials in the infrared spectral range play an increasingly important role in the aerospace … more

STARR II
Last Updated Date: 11/14/2012

STARR II is a facility for measuring reflectance and scattering of materials in the ultraviolet to short-wave infrared wavelength range (230 nm to … more

Quantum
Last Updated Date: 10/26/2012

Quantum science and engineering has the potential to revolutionize 21st century technology in much the same way that lasers, electronics, and … more

Optical scattering from surfaces
Last Updated Date: 10/25/2012

We study how material properties, surface topography, and contaminants affect the distribution of light scattered from surfaces. Our aim is to … more

Optical grating scatterometry
Last Updated Date: 10/25/2012

This program aims to develop standards, methods, and modeling for assessing the periodic structures using optical reflectance and transmittance … more

Color and appearance
Last Updated Date: 10/17/2012

We are developing instrumentation, standards artifacts, and measurement protocols to characterize appearance attributes including color, texture, … more

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