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Physics Programs & Projects

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Synchrotron Radiation-based Ultraviolet Source Calibrations
Last Updated Date: 04/23/2015

Bilateral comparison of synchrotron radiation-based deuterium lamp calibrations between the Physikalisch-Technische Bundesanstalt PTB and NIST. more

Bilateral Comparison of Spectral Responsivity in the Vacuum-Ultraviolet
Last Updated Date: 04/23/2015

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

Geostationary Operations Environment Satellite R-Series Program (GOES-R) Extreme UV/X-ray Irradiance Sensor (EXIS) Calibration
Last Updated Date: 04/23/2015

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

Use of a laser-driven plasma source in ultraviolet-detector calibrations
Last Updated Date: 04/22/2015

The National Institute of Standards and Technology operates two spectral comparator facilities, both of which are used to provide detector … more

Advanced Neutron Imaging Facility
Last Updated Date: 04/21/2015

The NIST Neutron Imaging Facility (NNIF) at the NIST Center for Neutron Research .

NIST Time Measurement and Analysis Service (TMAS)
Last Updated Date: 04/15/2015

The NIST Time Measurement and Analysis Service (TMAS) was designed to assist laboratories that maintain an accurate local time standard. The … more

NIST Frequency Measurement and Analysis Service (FMAS)
Last Updated Date: 04/15/2015

The NIST Frequency Measurement and Analysis Service (FMAS) makes it easy to measure and calibrate any quartz, rubidium, cesium, or hydrogen maser … more

NIST Standard Reference Simulation Website
Last Updated Date: 04/15/2015

The Standard Reference Simulation Website is an ongoing project whose aim is to provide well-documented simulation results for a variety of … more

Building the next generation reference reflectometer
Last Updated Date: 04/10/2015

ROSI (Robotic Optical Scatter Instrument) is a new facility for measuring reflectance and scattering of materials in the ultraviolet to short-wave … more

Absolute Ag108 Characterization Based on Gamma-Gamma Coincident Detection by Two Nai (TI) Detectors
Last Updated Date: 04/02/2015

A two-dimensional analysis of three coincident gamma-rays in 108 Ag m decay, detected by two NaI(Tl) scintillation detectors, allows a direct … more

Applications of Diagnostic X-ray Spectrometers
Last Updated Date: 04/02/2015

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

State-resolved Biomolecular Spectroscopies
Last Updated Date: 03/30/2015

Sensitive and fully state resolved spectroscopic methods in the terahertz (THz) and ultraviolet (UV) regions are being developed to investigate … more

Molecular Imaging
Last Updated Date: 03/30/2015

Biophotonics is at the intersection of photonics and biology where light is used to image, detect, and manipulate biological materials. This … more

Primary optical watt radiometer (POWR)
Last Updated Date: 03/30/2015

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

Lunar spectral irradiance and radiance (LUSI)
Last Updated Date: 03/30/2015

LUnar Spectral Irradiance and radiance (LUSI) is a proposed suite of instruments to radiometrically characterize the Moon for use as an on-orbit … more

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