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.
“To survive and win…we must leverage ingenuity and technology to develop comprehensive solutions” -U. S. Army CBRN capability development update, 2024 CBRN
New dimensional measurement technologies provide significant benefits to industry such as increasing measurement throughput, enabling new manufacturing process and providing more detailed part information for manufacturing process improvement. However, before purchasing and using new measurement
Aperture area measurements are performed at NIST’s aperture area measurement facility, which combines a precise interferometric motion stage with high-resolution optical microscopy. This non-contact method is especially well suited for the measurement of defining apertures with knife edges that are
The absolute fluence of a monochromatic neutron beam has been measured with a totally absorbing alpha-gamma counter. The counter absorbs the entire beam in an enriched 10B 4C target and infers the incident neutron rate by counting gamma-rays from the reaction n + 10B → 7Li + α + γ (478 keV) with
Gammacell™ Calibration Geometry Dose Rate Uncertainty Source Type A (%) Type B (%) Water Calorimetry in Vertical Beam 0.16 0.51 Gammacell/Pool Source Ratio Data 0.10 Pool/B036 Source Ratio Data 0.17 Geometry Correction Factor 0.11 Field Uniformity 0.01 Source Timer (irrad time > 8min) 0.20 Co-60
Since 1989, the NIST Charpy Machine Verification Program in Boulder, Colorado has been indirectly verifying Charpy machines around the world according to ASTM
We present an optical scheme to simultaneously characterize the cross-axis and rotational parasitic motions of a long-stroke shaker. By leveraging the geometric
Measurement of oscillating mass flows is typically required for the study of cryocoolers and cryocooler compressors. Although many measurement techniques are
Zenn Roberts, Aaron Hagerstrom, Cole Gray, Angela Stelson, Vincent Neylon, Christian Long
The National Institute of Standards and Technology (NIST) maintains the United State's primary standards for traceable RF and mm-wave power measurements. These
The Taylor Hobson Form Talysurf PGI 1240 is a mechanical stylus profilometer for surface texture and microform measurements. Its primary purpose is for the
The largest of 6 NIST deadweight force generation machines, the 4.45 MN Deadweight Force Generating Machine can apply 20 equal force increments of 222 kN (or