The nuclei of the atoms in some elements are unstable and emit radiation. The radiation can be of three types - alpha radiation, beta radiation and gamma radiation.

Potassium 40, the main source of radioactivity in our bodies, has a half-life of 1.42 billion years. Types of Radiation The term "radiation" is very broad, and includes such things as light and radio ...

All types of radiation become less intense as they travel further away from the radioactive material. This is because the particles or rays become more spread out. The thicker the substance ...

The first module provides a basic understanding about radiation - what it is, where it comes from and the different types of radiation amd how people can protect themselves from its adverse effects.

The experiments we have made have confirmed this anticipation, and shown that in every case in which light is scattered by the molecules in dust-free liquids or gases, the diffuse radiation of the ...

Ionizing radiation is higher energy radiation that has enough energy to directly or indirectly break an electron away from an atom. There are four types of ionizing radiation: alpha radiation ...

Radiation therapy damages the genetic material of cancer cells to kill them or slow their growth. More than half of people with cancer get it. Your doctor may suggest one of these types of ...