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Physics Programs & Projects

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Neutron Detector Replacement Program
Last Updated Date: 07/22/2013

The Department of Homeland Security/Domestic Nuclear Detection Office (DHS/DNDO) is pursuing a course to transform 3 He alternative technologies … more

Measurement of the Electron-Antineutrino Correlation in Neutron Decay
Last Updated Date: 07/22/2013

The angular correlation between the beta electron and antineutrino in nuclear beta decay α is the least well-known of the group of neutron decay … more

Magnetically Trapped Neutron Lifetime Experiment
Last Updated Date: 07/22/2013

The decay of the free neutron is the simplest nuclear beta decay and is the prototype for all charged current semi-leptonic weak interactions.  … more

High-Efficiency Neutron Detection and Spectroscopy
Last Updated Date: 07/22/2013

Precise knowledge of the fast neutron spectrum and fluencies is essential for several experimental endeavors requiring the low-background of the … more

Alpha-gamma Counting for High Accuracy Fluence Measurements
Last Updated Date: 07/22/2013

Neutron fluence is measured by counting gamma-rays from the reaction n+ 10 B® 4 He+ 7 Li + g(478KeV) with a calibrated gamma detector. The gamma … more

Advanced Neutron Imaging Facility
Last Updated Date: 07/22/2013

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

Frequency Conversion Interfaces for Photonic Quantum Systems
Last Updated Date: 07/02/2013

Optical frequency conversion, in which the color of light is changed, is a process that has numerous applications in physics and technology.  For … more

Nanoplasmonics and Three-Dimensional Plasmonic Metamaterials
Last Updated Date: 06/28/2013

Metamaterials are tailor-made photonic composites--combinations of materials designed to achieve optical properties not seen in nature. The … more

Electron Beam Ion Trap (EBIT) Facility
Last Updated Date: 06/06/2013

The NIST EBIT Facility is used to investigate the science and applications of highly charged ions.

High-Resolution Atomic Spectroscopy
Last Updated Date: 06/06/2013

Accurate measurements of atomic transitions using diffraction grating spectrographs, Fourier transform spectrometers, and laser spectroscopy. more

Atomic Spectroscopy Data Center
Last Updated Date: 06/06/2013

Critical compilations of atomic energy levels, transition wavelengths, and transition probabilities. Online databases. more

Spectroscopy of Engineered Atoms
Last Updated Date: 06/06/2013

Experiments with atomic systems designed to have features more favorable for improved measurements of atomic properties and constants of nature.     more

IECn42
Last Updated Date: 06/05/2013

The purpose of the IEC 62755 standard N42 data format is to facilitate manufacturer-independent transfer of information from radiation measurement … more

Plasma Metrology
Last Updated Date: 06/04/2013

Measurement techniques in support of commercial and scientific uses of plasmas.

Technical Highlights Atomic Physics Division
Last Updated Date: 06/04/2013

The strategy of the Atomic Physics Division is to develop and apply atomic physics research methods, and particulary the interaction between atoms … more

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