Sources of Occupational Radiation Exposure

  • Robert Prince


The reactor core is the primary source of the radionuclides encountered at LWR’s whether they are fission products or activation products. Radiation is produced when the fissile nuclides U-235 and later in core life, Pu-239 fission. The fission process produces neutrons, beta particles and gamma radiations directly along with radioactive fission products. Along with the two fission products, two to three neutrons are also emitted in addition to the energy given off during the process. The fission products consist of numerous radionuclides many of which emit beta and gamma radiations. In addition to neutrons posing a direct radiation hazard when the reactor is critical, they also produce radionuclides by means of neutron activation.


Corrosion Product Fission Product Fuel Assembly Primary System Radiation Level 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Electric Power Research Institute, Report NP-3432, PWR Radiation Fields Through 1982Google Scholar
  2. 2.
    Nuclides and Isotopes, Fourteenth Edition, General Electric Company, 1989Google Scholar
  3. 3.
    Radiological Health Handbook, U.S. Department of Health, Education, and Welfare, 1970Google Scholar
  4. 4.
    Shleien, B., and Terpilak, M., The Health Physics and Radiological Health Handbook, Nucleon Lectern Associates, 1984Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Robert Prince
    • 1
  1. 1.US Nuclear Regulatory Commission Marquis One TowerAtlantaUSA

Personalised recommendations