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BOOKLET to Provide Basic Information Regarding Health Effects of Radiation (2nd edition)

Conversion Factors to Effective Doses

Conversion Factors to Effective Doses_Figure

For dose assessment for internal exposure, doses are calculated by estimating an intake for each nuclide and chemical form and multiplying estimated intakes by dose coefficients. Dose coefficients are committed equivalent doses or committed effective doses for an intake of 1 Bq and a specific value has been given for each nuclide, chemical form, intake route (ingestion or inhalation), and for each age group by the ICRP.

The commitment period, i.e., the period during which doses are accumulated, is 50 years for adults and the number of years up to reaching age 70 after intake for children.

  • Included in this reference material on March 31, 2013
  • Updated on February 28, 2018
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