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NIST maintains the Californium Neutron irradiation Facility (CNIF), which is an exposure facility providing fast neutrons for irradiations requiring high
Precise calibration of short-lived radioactive material is essential for nuclear medicine and power plant applications. To deliver such calibrations on-demand
NIST provides the national reference for the calibration of neutron radiation detectors used for personnel protection and for neutron personnel dosimeters.
The neutron source calibration facility operated by NIST is a world-class calibration laboratory providing neutron source calibration services for radioisotopic
A second Manganese Sulfate Bath is in service. It is smaller than our large bath and it is portable. The former feature allows it to measure the emission rate
The Standard Reference Materials Program of the National Institute of Standards and Technology (NIST) provides science, industry, and government with a central
Absorbed dose is the energy imparted per unit mass by radiation to an irradiated target. The SI unit of absorbed dose is the gray (abbreviated Gy), equivalent
This project focuses on understanding the potential for nanoscale engineered materials to advance state-of-the-art spectroscopic techniques and foster the
Our research focuses on miniaturized laser sources with narrow linewidth that can operate in ambient environments. Lasers with high spectral purity can enable a
Every four years, the Committee on Data for Science and Technology (CODATA) issues recommended values of the fundamental physical constants. The values are
We are building a cold-atom based sensor program that represents a new approach to metrology—to establish a set of chip-scale tools that enable real-world use
NIST is building a cold-atom vacuum sensor (CAVS) that will be able to measure pressures in the ultra-high vacuum (UHV) regime corresponding to pressures less
We are developing instrumentation, standards artifacts, and measurement protocols to characterize appearance attributes including color, texture, and gloss
Our research focuses on the development of novel sensing platforms using cold atomic gases and atomic beams. Laboratory-scale cold atom apparatuses provide some
We are developing a scalable infrastructure for strontium optical-lattice clocks based on integrated photonics. This research results in new technologies to
NIST participated in an international comparison of standards for absorbed dose to water for 60Co gamma radiation at radiation-processing dose levels organized
Certified Reference Materials (CRMs) are needed to develop and validate method analysis, and also for quality monitoring of established radioanalytical
An international measurement comparison for a 99Tc solution hosted by National Physical Laboratory (NPL) of the UK, (CCRI(II)K-2. 99Tc comparison) was completed
All of the plutonium isotopes, which have a very high biotoxicity, are man-made and result from various nuclear activities. Plutonium-241 is a very low-energy