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 ...

The type of radioactivity that I often speak about with Alaska residents comes from a naturally occurring substance, radon gas. And though radon’s alpha radiation comes from buried uranium, the main ...

The United States Nuclear Regulatory Commission (USNRC) defines it as the process of radiation attenuation achieved by placing an absorbent substance between an individual, a workspace, or a radiation ...

Doctors may opt for radiation therapy to treat lung cancer. However, it can cause side effects, such as nausea, skin changes, and temporary damage to the chest that causes coughing and shortness of ...