In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

A concentration of one part per billion is like a pinch of salt in 10 tons of potato chips—and scientists can now find radioactive particles at concentrations millions of times smaller. In the Journal ...

RHINELANDER – In the late 1960s and the early 1970s, a plot of forestland in Wisconsin's Northwoods was home to one of the most curious experiments born out of the nuclear fears of the Cold War.

Pacific Northwest National Laboratory chemist Isaac Arnquist examines the ‘coupons’ of ultra-low radiation copper cables specially created for sensitive physics detection experiments. Background ...

THOSE teachers of physics who are considering the desirability and practicability of introducing into their more advanced courses of laboratory work some experiments on the discharge of electricity ...

In 1969 Coventry, England, Punjabi mother Pritam Kaur sought treatment for migraines, unaware she was part of a secret radiation experiment. Without her consent, she and others from immigrant ...

Newly developed ultra-low radiation cables reduce background noise for neutrino and dark matter detectors. Imagine trying to tune a radio to a single station but instead encountering static noise and ...

RICHLAND, Wash.—Imagine trying to tune a radio to a single station but instead encountering static noise and interfering signals from your own equipment. That is the challenge facing research teams ...