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Radiation Safety Training Module
Radiation Safety Training
Study Guide
ISU Technical Safety Office, Campus Box 8106
Pocatello, ID 83209
(208) 282-2311/2310

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Radiation Safety Trng in .doc

Radiation Safety Trng in .pdf

Radiographic Sci Trng in .doc

Radiographic Sci Trng in .pdf

Concepts in radiation physics

Atomic structure

The basic particles of the atom:
  • Protons
  • Neutrons
  • Electrons
Only certain combinations of neutrons and protons in the nucleus result in stable atoms;  unstable atoms will emit particles or energy to become stable and are referred to as radioactive.

Types of radiation
Radiation is classified as either ionizing or non-ionizing. Ionization occurs when enough energy is supplied to an atom and an electron is removed from the atom.  The resulting atom will have a positive charge. Non-ionizing radiation includes radiant heat, radio waves, ultraviolet radiation, and light.

Ionizing radiation includes:
  • Alpha
  • Beta
  • Gamma
  • Neutron
  • X-ray

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