Penn Medicine researchers are testing whether an ultrafast form of radiation therapy can treat cancers in the head and neck with fewer side effects. The clinical trial marks the first time the ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...