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 ...

Flight attendants and pilots are at the highest risk of dying from radiation-related cancers — even more than people who work with radioactive materials, according to a new study. Cosmic radiation ...

Radiopharmaceuticals are drugs that contain, among other ingredients, radioactive forms of chemical elements called radioisotopes. Depending on the type of radiation that those radioisotopes produce, ...

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 ...

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 ...