Radiation Basics - US EPA
2024年10月1日 — Radiation can come from unstable atoms or it can be produced by machines. There are two kinds of radiation; ionizing and non-ionizing radiation. Learn about alpha, beta, …
Radiation Basics | NRC.gov
2020年3月20日 — As previously indicated, large unstable atoms become more stable by emitting radiation to get rid of excess atomic energy (radioactivity). This radiation can be emitted in the …
Radiation Basics Made Simple | Radiation Emergencies | CDC
2024年10月10日 — Radiation Basics Made Simple is a training module that introduces participants to the fundamentals of radiation and radioactivity. Radiation Basics Made Simple features an …
When an electron moves (undergoes a transition) to a lower energy level, it must release energy. An x-ray is electromagnetic radiation (emr) that is emitted when an electron loses energy. X …
Radioactivity | Definition, Types, Applications, & Facts | Britannica
2024年9月24日 — Radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic …
Introduction to Radioactivity and Nuclear Physics - OpenStax
In this chapter, the fundamentals of nuclear radioactivity and the nucleus are explored. The following two chapters explore the more important applications of nuclear physics in the field of …
31.1: Nuclear Radioactivity - Physics LibreTexts
A substance or object that emits nuclear radiation is said to be radioactive. Two types of experimental evidence imply that Becquerel’s rays originate deep in the heart (or nucleus) of …
Introduction to Nuclear Engineering and Ionizing Radiation
It describes basic nuclear models, radioactivity, nuclear reactions, and kinematics; covers the interaction of ionizing radiation with matter, with an emphasis on radiation detection, radiation …
Ionizing photon radiation is classified into four categories: Characteristic x ray Results from electronic transitions between atomic shells. Bremsstrahlung Results mainly from electron …
Radiation basics - International Atomic Energy Agency
2019年3月25日 — In nuclear medicine, medical practitioners inject patients with a radioactive substance that accumulates in a targeted part of the body. By detecting the radiation exiting …