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 ...

Defining the extent of a tumor, known as target delineation, is a critical first step in planning radiation treatments, since accurate localization reduces the chance of unintentional exclusion of ...

Exposure to radiation is safe in small amounts and when it is strictly controlled during a medical exam such as an X-ray, for example. However, long-term exposure to small amounts of radiation can ...

The symposium organizing committee invited a number of experts to provide overviews of current and future directions of specific research areas in radiation epidemiology and radiation biology. The ...

Radiotherapy is a major cancer treatment option but dose-limiting side effects such as late-onset fibrosis in the irradiated tissue severely impair quality of life in cancer survivors. Efforts to ...

SAN FRANCISCO — Astronauts could endure a long-term, roundtrip Mars mission without receiving a worryingly high radiation dose, new results from NASA's Mars rover Curiosity suggest. A mission ...