Internal radiation dose calculations with the INREM II computer code. [Human organ dose calculations from inhaled or injested radionuclides of interest in the light-water-reactor fuel cycle]
A computer code, INREM II, was developed to calculate the internal radiation dose equivalent to organs of man which results from the intake of a radionuclide by inhalation or ingestion. Deposition and removal of radioactivity from the respiratory tract is represented by the Internal Commission on Radiological Protection Task Group Lung Model. A four-segment catenary model of the gastrointestinal tract is used to estimate movement of radioactive material that is ingested, or swallowed after being cleared from the respiratory tract. Retention of radioactivity in other organs is specified by linear combinations of decaying exponential functions. The formation and decay of radioactive daughters is treated explicitly, with each radionuclide in the decay chain having its own uptake and retention parameters, as supplied by the user. The dose equivalent to a target organ is computed as the sum of contributions from each source organ in which radioactivity is assumed to be situated. This calculation utilizes a matrix of dosimetric S-factors (rem/..mu..Ci-day) supplied by the user for the particular choice of source and target organs. Output permits the evaluation of components of dose from cross-irradiations when penetrating radiations are present. INREM II has been utilized with current radioactive decay data and metabolic models to produce extensive tabulations of dose conversion factors for a reference adult for approximately 150 radionuclides of interest in environmental assessments of light-water-reactor fuel cycles. These dose conversion factors represent the 50-year dose commitment per microcurie intake of a given radionuclide for 22target organs including contributions from specified source organs and surplus activity in the rest of the body. These tabulations are particularly significant in their consistent use of contemporary models and data and in the detail of documentation.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6451203
- Report Number(s):
- CONF-7810123-1; TRN: 79-007242
- Resource Relation:
- Conference: 12. annual symposium of the German Health Physics Society--radioactivity and the environment, Frisian Islands, F.R. Germany, Oct 1978
- Country of Publication:
- United States
- Language:
- English
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Estimates of internal dose equivalent to 22 target organs for radionuclides occurring in routine releases from nuclear fuel-cycle facilities. Volume III
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ADRENAL GLANDS
DOSE COMMITMENTS
DOSE EQUIVALENTS
BLADDER
BONE MARROW
CARBON 14
DOSIMETRY
COBALT 57
COBALT 58
COBALT 60
COMPUTER CODES
I CODES
IRON 55
IRON 59
KIDNEYS
LARGE INTESTINE
LIVER
LUNGS
LYMPH NODES
MANGANESE 54
OVARIES
PANCREAS
PHOSPHORUS 32
RUBIDIUM 86
SKELETON
SMALL INTESTINE
SODIUM 22
SPLEEN
STOMACH
STRONTIUM 89
STRONTIUM 90
STRONTIUM 91
TESTES
THYMUS
THYROID
TRITIUM
UTERUS
YTTRIUM 90
YTTRIUM 91
ZINC 65
ZIRCONIUM 95
ZIRCONIUM 97
BWR TYPE REACTORS
EXPERIMENTAL DATA
FUEL CYCLE
INGESTION
INHALATION
INTERNAL IRRADIATION
MAN
MATHEMATICAL MODELS
PWR TYPE REACTORS
TABLES
ALKALI METAL ISOTOPES
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BETA DECAY RADIOISOTOPES
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BODY
CARBON ISOTOPES
COBALT ISOTOPES
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DAYS LIVING RADIOISOTOPES
DIGESTIVE SYSTEM
ELECTRON CAPTURE RADIOISOTOPES
ENDOCRINE GLANDS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FEMALE GENITALS
GASTROINTESTINAL TRACT
GLANDS
GONADS
HEMATOPOIETIC SYSTEM
HOURS LIVING RADIOISOTOPES
HYDROGEN ISOTOPES
INFORMATION
INTAKE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
INTESTINES
IRON ISOTOPES
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
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LIGHT NUCLEI
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MALE GENITALS
MAMMALS
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MINUTES LIVING RADIOISOTOPES
NUCLEI
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ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANS
PHOSPHORUS ISOTOPES
PRIMATES
RADIOISOTOPES
REACTORS
RESPIRATORY SYSTEM
RUBIDIUM ISOTOPES
SODIUM ISOTOPES
STRONTIUM ISOTOPES
TISSUES
URINARY TRACT
VERTEBRATES
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVING RADIOISOTOPES
YTTRIUM ISOTOPES
ZINC ISOTOPES
ZIRCONIUM ISOTOPES
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