An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A Net-Zero Energy Residential Test Facility (NZERTF) has been constructed and extensively instrumented. The facility incorporates a high-performance envelope, a
NIST's versatile wind tunnel is used to calibrate customers' airspeed sensors and to conduct research on the design of novel anemometers, the responses of
Ambient and atmospheric pressure mass spectrometry platforms provide sample collection, transport, and ionization for vapor, aerosol, and liquid samples
ZnO nanowires (NWs) are grown on bulk copper by chemical vapor deposition. Photoluminescence (PL) microscopy revealed band gap emission at 380 nm and a more
Atmospheric aerosol particles often have compositions and shapes that cannot be described as a single material phase within a simplified geometric form such as
This project develops STEM-in-SEM methods or low-energy transmission electron diffraction, imaging, and spectroscopy in the scanning electron microscope, to
Antennas are the eyes, ears and voice boxes of everything from cell phones to interplanetary spacecraft. The Antenna Metrology Program carries on NIST's
Radiometric and photometric measurements require defining apertures. The accuracy to which these measurements can be accomplished requires minimization of the
Theory is being developed and used to devise methods for preserving and exploiting the quantum behavior of ever-larger systems for metrology, communication, and
We collaborated on tests at the Insitut Laue Langevin (ILL) to study the effects of high flux neutron beams on spin-exchange optical pumping (SEOP). The key
We continue to work improving techniques in fast neutron detection using segmented spectrometers based on the principle of capture-gating. Our approach employs
Neutron detectors based on UV scintillations in xenon gas are under development for a variety of applications. The scintillations are produced with high
The detection of low energy charged particles is essential to high precision fundamental physics experiments, particularly with neutron beta decay. The majority
Spectroradiometers are widely used for acquiring colorimetric, photometric, and radiometric quantities with a single measurement for a variety of applications
The capabilities of many neutron scattering instruments would be greatly enhanced by neutron polarization analyzers that can cover a wide angular range.
Operation of the second neutron radiative decay experiment was completed. In the experiment we observed the emission of photons that accompany neutron beta
The National Institute of Standards and Technology operates two spectral comparator facilities, both of which are used to provide detector calibrations from the
The ASM Structural Materials Data Demonstration Project SMDDP) is a cooperative research project with the NIST Materials Measurement Laboratory (MML) that is
Due to their small size, nanoparticles can enter living organisms in previously unforeseen ways and their immense surface area results in higher reactivity
Atmospheric particles with long atmospheric lifetimes affect Earth's radiative balance. These particles typically consist of multiple chemical species. The