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 ...

When nuclear accidents happen, many people imagine radiation spreading everywhere and lasting forever. The reality is more complex. Radioactive materials move, change and sometimes disappear faster ...

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, ...