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NCRP Report No. 84, General Concepts for the Dosimetry of Internally Deposited Radionuclides
NCRP Report No. 84 discusses the primary concepts relating to protection from internal emitters. These primary concepts include dose equivalent, effective absorbed energy, and specific effective energy, intake patterns, committed dose equivalent, dose equivalent commitment, and population dose, the critical organ concept and effective committed dose equivalent, and stochastic and nonstochastic effects. An evaluation and recommendation is presented for each of the primary concepts reviewed. The forms of expression of internal emitter standards, such as annual limit on intake, derived air concentration and maximum permissible concentration, derived organ or body burden, are considered and evaluated. The Report devotes attention to the various deposition, metabolism and anatomic models which form the basis for an internal dose calculation system. The models evaluated are reference man, respiratory tract, gastrointestinal tract, bone, excretion, and dose from submersion in a radioactive cloud. Also included is a qualitative statement of present NCRP thinking on control of internal exposure and an identification of research needs in connection with dosimetry of internally deposited radionuclides.
Telephone: 1-800-229-2652, Ext. 25
Email: NCRPpubs@NCRPonline.org
Fax: 301-907-8768
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