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Physics Programs & Projects

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Degradation of extreme-ultraviolet optics
Last Updated Date: 09/04/2015

Optical systems that operate at wavelengths in the ultraviolet (UV) and extreme-ultraviolet (EUV) are susceptible to degradation by a number of … more

Sources, detectors and metrology
Last Updated Date: 09/02/2015

We develop and learn how to characterize non-classical sources and single-photon detectors. It turns out that detectors of single photons cannot … more

Memory
Last Updated Date: 09/02/2015

Critical to quantum information applications is the need to store a quantum state while other qbits are created or processed.

Single-photon Measurements
Last Updated Date: 09/02/2015

We use single-photons and/or single-photon detectors to aid different precision measurements and to improve accuracy.

Detector metrology
Last Updated Date: 09/02/2015

High performance optical radiometers with selected optical detectors are being designed, characterized, and calibrated in the Optical Radiation … more

Quantum Biophotonics
Last Updated Date: 09/02/2015

Faint light detection is a staple in biology- used from systems biology research to bioassays for biomanufacturing and healthcare diagnostics.

Universal Quantum Bus
Last Updated Date: 09/02/2015

If quantum computers are ever to be realized, they likely will be made of different types of parts that will need to share information with one … more

Vacuum-Ultraviolet Optical Properties of Cryogenic Water Ices
Last Updated Date: 09/01/2015

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

Extreme Ultraviolet Detector Calibration Service
Last Updated Date: 09/01/2015

The extreme ultraviolet detector (EUVD) calibration service disseminates the U.S. national scale of detector responsivity in the wavelength range … more

Quantum Sensors
Last Updated Date: 08/31/2015

The Quantum Sensors Project develops sensors based on quantum phenomena for spectroscopy, imaging, and other precision measurements for … more

Thermometry
Last Updated Date: 08/31/2015

The NIST Thermodynamic Metrology Group maintains and develops national standards of temperature (in the range 0.65 K to 1235 K), and supports … more

Calibration of Low-Energy Photon Brachytherapy Sources
Last Updated Date: 08/31/2015

Small radioactive "seed" sources used in prostate brachytherapy, containing the radionuclide 103 Pd, 125 I, or 131 Cs, are calibrated in terms of … more

National Air-Kerma Standard for Electronic Brachytherapy
Last Updated Date: 08/31/2015

The Dosimetry Group has developed a new facility for the calibration of the Xoft miniature x-ray source, which provides low-energy x-rays (< 50 … more

Calibration of Beta-Particle Sources and Instruments for Radiation Protection
Last Updated Date: 08/31/2015

A calibration service for protection-level beta-particle sources and instrumentation has been in place at NIST for several years.

Technetium-99m Primary Standardization and International Comparison
Last Updated Date: 08/31/2015

Technetium-99m ( 99m Tc) is used in two-thirds of all diagnostic nuclear medicine procedures in the United States.

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