What are the different types of radiation found at UBC?
All radiation is not equally hazardous, and it is important to distinguish between different types of radiation that are used in research at UBC to ensure that proper precautions are taken. Alpha radiation: Alpha particles consist of two protons and two neutrons, and carry a positive charge. Alpha particles are barely able to penetrate skin and can be stopped completely by a sheet of paper. Beta radiation: Beta radiation consists of fast moving electrons ejected from the nucleus of an atom. While more penetrating than alpha radiation, beta radiation is stopped by a book or human tissue. Gamma radiation: Gamma radiation is a very penetrating type of radiation. It is usually emitted immediately after the ejection of an alpha or beta particle from the nucleus of an atom. It can pass through the human body, but is almost completely absorbed by denser materials such as concrete or lead. X-rays: X-rays are a form of radiation produced mainly by artificial means rather than by naturally occur
