Radiation Protection Principles

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Time Clock

  • The shorter period of radiation exposure, the less radiation will be absorbed. When possible, people who work in radiation areas must reduce the time that they spend near radioactive sources

Distance Sitting

  • The intensity of ionizing radiation, like the radiation of visible light, rapidly decreases with distance. Therefore, increasing the distance from a radioactive source will reduce the amount of radiation exposure.

Shielding Shielding

  • People working with or staying near radiation sources are protected by barriers which include shielding of plastic, lead or concrete.
  • Shielding material absorbs the radiation energy therefore reducing the amount of radiation the body absorbs

Types of Shielding Material

Types of Shielding Material

Contamination Control

  • Contamination occurs when there is a spillage or leakage of radioactive materials.
  • Use protective clothing and equipment when working with nuclear substances.
  • Prevent the radioactive material from contaminating your skin or your clothes.
  • Reduce internal exposure by not eating or not drinking near radioactive sources or in nuclear substance rooms.
  • Prevent the spread of radioactive spill.
  • Have trained personnel clean up contamination and monitor personnel and area for radiation levels.

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