Most people interpret radiation as a bad thing—but it isn’t always. In fact, radiation is a very normal phenomenon. For now, let’s just say that radiation is when an object produces energy. When a ...

Radioactive sources contain radioactive material of a particular radionuclide (an unstable form of an element emitting radiation), which can vary based on the application for which the source was ...

A new map offers a new perspective on the city, revealing the steady, ever-present natural radiation emerging from the ground ...

Radiation therapy is often a key part of treatment for oral cancer. The side effects can be uncomfortable but are usually temporary. Tongue cancer is a type of oral cancer. Often, the best course of ...

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 ...

Doctors may use radiation therapy to treat benign tumors. Radiation can shrink and eliminate benign growths without doctors having to perform surgery. Benign tumors are noncancerous growths that can ...

Cancer-busting particle beams have been caught in the act. Particle beams can provide a blast of destructive energy directly to tumors — assuming the beam is in the right place. Now, using a ...

Potassium iodide (KI) is a type of iodine a person may receive during a radiation emergency. It works by preventing the thyroid from absorbing a type of radioactive material. KI is a type of medical ...