Ionizing radiation includes high speed particles and high energy electromagnetic waves. Their energy is high enough to remove orbital electrons from atoms, thus giving rise to positively charged ions and negatively charged electrons.
Apart from x-rays which are emitted by excitation of electron clouds, most of the ionizing radiation come from the decay of unstable nuclei. Brief descriptions of different types of ionizing radiation are given below:
- Alpha (α) particles
- Beta (β) particles
- Gamma (γ) rays and x-rays
- Summary of different types of radiation