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Physics Programs & Projects

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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

Vacuum-Ultraviolet Optical Properties of Cryogenic Water Ices
Last Updated Date: 03/24/2015

The optical properties of cryogenic water ices in the vacuum-ultraviolet spectral range are studied.

Synchrotron Radiation-Based Calibrations for Space Weather Prediction
Last Updated Date: 03/24/2015

Orbital ultraviolet and extreme-ultraviolet spectrometers are calibrated on beamline 2, taking advantage of the calculability of synchrotron … more

NIST Lyman-Alpha Neutron Detector (LAND)
Last Updated Date: 03/24/2015

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

Photodetector Analysis for Biological Agent Detection
Last Updated Date: 03/24/2015

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

Long-Term Monitoring of the Ultraviolet Irradiance Scale
Last Updated Date: 03/24/2015

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

Theoretical Mass Spectrometry
Last Updated Date: 03/18/2015

Mass spectrometry is an important technique in analytical chemistry, essential in areas including drug development, criminal and agricultural … more

Nanomagnetic Imaging
Last Updated Date: 02/25/2015

The microscopic arrangement of the magnetic structure within a thin metal film plays a fundamental role in many technological applications ranging … more

Novel Sources for Focused-ion Beams
Last Updated Date: 02/23/2015

Focused beams of ions have a wide range of uses, from nanoscale imaging to the fabrication of nanomaterials. In the CNST, researchers are … more

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