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.

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.

In living tissues, the electrical ions produced by radiation can affect normal biological processes. There are various types of radiation, each having different characteristics. The common ionizing ...

As different types of radiation differ in their ability to produce specific effects (for example, α-particles are more effective per unit of absorbed dose than X-rays in producing chromosomal ...

All types of radiation become less intense ... Alpha, beta and gamma radiations penetrate materials in different ways. Alpha radiation is the least penetrating. It can be stopped (or absorbed ...

Different types of radiation have different impacts on tissue, and those differences need to be taken into account when calculating dose, through weighting factors that reflect the relative ...