The HSE-gateway

Ionizing radiation

Ionizing radiation has enough energy to harm hereditary material in cells.

Ionizing radiation is radiation that has sufficient energy, in the form of particles or electromagnetic radiation, to knock out electrons from atoms and / or molecules that are hit, such that an ion is formed in biological material.

In order to support this, radiation must have energy of 12.6 eV (electron volts), corresponding to a wavelength of 100 nm or shorter. In the human body, this radiation will have high enough energy to break the chemical bonds in the genetic material in cells and thus damage it.

There are two main types of ionizing radiation:

  • Particle Radiation-α-, β-, neutron and proton radiation.
  • Electromagnetic radiation (photos radiation) - X-ray and γ-radiation.

Knowledge and good working procedures and routines are essential precondition for working safely with ionizing radiation sources. Everyone working with ionizing radiation shal be registrated in the exposure register