Estimates of Internal Dose Equivalent to 22 Target Organs for Radionuclides Occurring in Routine Releases from Nuclear Fuel-Cycle Facilities: Vol. II

Technical Report · Mon Oct 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5632857· OSTI ID:5632857

Dunning, Jr., D. E. ^[1]; Bernard, S. R. ^[1]; Walsh, P. J. ^[1]; Killough, G. G. ^[1]; Pleasant, J. C. ^[2]

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1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
2. East Tennessee State Univ. (ETSU), Johnson CIty, TN (United States)

This report is the second of a two-volume tabulation of internal radiation dose conversion factors for man for radionuclides of interest in environmental assessments of light-water-reactor fuel cycles. This volume treats 78 radionuclides, all of mass number greater than 200. Intake by inhalation and ingestion are considered. The International Commission on Radiological Protection (ICRP) Task Group Lung Model has been used to simulate the behavior of particulate matter in the respiratory tract. Results corresponding to activity median aerodynamic diameters (AMAD) of 0.3, 1.0, and 5.0 μm are given. The gastrointestinal (GI) tract has been represented by a four-segment catenary model with exponential transfer of radioactivity from one segment to the next. Retention of radionuclides in other organs is characterized by linear combinations of decaying exponential functions. Fifty-year dose commitment per microcurie intake of each parent nuclide is given for 22 target organs with contributions from specified source organs plus surplus activity in the rest of the body; cross irradiation due to penetrating radiations has also been incorporated into these tabulations. Dose conversion factors are also presented in four sets of summary tables for easy reference. In addition to the foregoing tabulations, in which the value Q_α = 10 has been assumed for the quality factor corresponding to alpha emissions, an alternative table of dose conversion factors for alpha-emitting nuclides with Q_α = 20 is provided. Specific computational details in which the present calculations depart from the general methodologies presented in the previous volume of this series are discussed.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE; USNRC
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5632857
• Report Number(s): ORNL/NUREG/TM--190/V2; NUREG/CR-0150(Vol.2)
• Country of Publication: United States
• Language: English

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ACTINIDES
ALKALI METALS
ALKALINE EARTH METALS
ASTATINE
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGY
BISMUTH
BODY
DIGESTIVE SYSTEM
DOSE EQUIVALENTS
ELEMENTS
ENDOCRINE GLANDS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FRANCIUM
FUELS
FUNCTIONAL MODELS
GASTROINTESTINAL TRACT
GLANDS
HALOGENS
HAZARDS
HEALTH HAZARDS
INGESTION
INHALATION
INTAKE
INTERNAL IRRADIATION
IRRADIATION
ISOTOPES
KIDNEYS
LEAD
LUNGS
METALS
NONMETALS
NUCLEAR FACILITIES
NUCLEAR FUELS
ORGANS
POLONIUM
RADIATION EFFECTS
RADIOACTIVITY TRANSPORT
RADIOBIOLOGY
RADIOISOTOPES
RADIUM
RADON
RARE GASES
REACTOR MATERIALS
RESPIRATORY SYSTEM
RETENTION
SKELETON
SPLEEN
THALLIUM
THYROID
URANIUM