U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

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.

Physical Measurement Laboratory

Radiation Physics Division

News and Updates

Displaying 1 - 25 of 48
Building exterior

Spotlight: Radiometric Dating

Dating can be complicated. Our team uses this instrument — a live-timed anticoincidence counter — to figure the decay rate of an isotope, which we can then use
Alpha-Gamma Device Step 1

Neutrons by the Numbers

After years of research, scientists at the National Institute of Standards and Technology (NIST) have developed and demonstrated a way to count the absolute
PROSPECT detector diagram

In Search of ‘Sterile’ Neutrinos

Lately, neutrinos – the tiny, nearly massless particles that many scientists study to better understand the fundamental workings of the universe – have been
hydrogenation of magnesium-iron film

Hydrogen Storage Formulation Patented

The prospect of a "hydrogen economy" – in which vehicles powered by fuel cells would travel the nation's roadways emitting nothing from their tailpipes but
Photo of goniometer

NIST Gets New Angle on X-Ray Measurements

Criminal justice, cosmology and computer manufacturing may not look to have much in common, but these and many other disparate fields all depend on sensitive
chamber and computer simulation

Computing for Better Radiation Therapy

Doctors devising a plan of attack on a tumor may one day gain another tactical advantage thanks to a series of sophisticated calculations proposed by PML's