Article | REF: BN3295 V2

Maintenance of Nuclear Power Plants. General Provisions and Organisation

Author: Jean-Pierre HUTIN

Publication date: July 10, 2017 | Lire en français

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5. Radiation protection

Radiation protection (RP) is defined as "protection against ionizing radiation". We distinguish between external exposure (irradiation from a source outside the body) and internal exposure (from a source inside the body). The term "contamination" refers to a situation where a source is fixed in contact with the body.

5.1 Sources

In a nuclear power plant, there are three types of radionuclides that emit ionizing radiation: fission products, actinides and activation products.

The fission products and actinides resulting from the nuclear reaction normally remain confined within the fuel assembly rods. In the event of leakage, gaseous products may be released into the primary circuit and then, when the circuit is open, into the reactor...

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