radiation in medical applications
, What is ionising radiation?
Ionising radiation (IR) is a type of radiation that is able to
penetrate biological tissues.
When tissues are exposed to the radiation, enough
energy is deposited to break chemical bonds and remove
electrons from the orbit of atoms.
This process is also known as ionisation
, Examples of ionising radiation
Medical procedures that use IR: Non-medical examples:
- X-rays - Alpha particles
- Gamma ray imaging - Beta particles,
- CT and CAT scans - Neutrons
- Radiotherapy - High-speed electrons
- Proton beam therapy - High-speed protons
- Gamma knife surgery - Other ion-producing particles.