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]

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6451203

Dunning, Jr, D E; Killough, G G

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
• Country of Publication: United States
• Language: English

Related Subjects

560161 -- Radionuclide Effects
Kinetics
& Toxicology-- Man
560171* -- Radiation Effects-- Nuclide Kinetics & Toxicology-- Man-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADRENAL GLANDS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BLADDER
BODY
BONE MARROW
BWR TYPE REACTORS
CARBON 14
CARBON ISOTOPES
COBALT 57
COBALT 58
COBALT 60
COBALT ISOTOPES
COMPUTER CODES
DATA
DATA FORMS
DAYS LIVING RADIOISOTOPES
DIGESTIVE SYSTEM
DOSE COMMITMENTS
DOSE EQUIVALENTS
DOSIMETRY
ELECTRON CAPTURE RADIOISOTOPES
ENDOCRINE GLANDS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FEMALE GENITALS
FUEL CYCLE
GASTROINTESTINAL TRACT
GLANDS
GONADS
HEMATOPOIETIC SYSTEM
HOURS LIVING RADIOISOTOPES
HYDROGEN ISOTOPES
I CODES
INFORMATION
INGESTION
INHALATION
INTAKE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
INTERNAL IRRADIATION
INTESTINES
IRON 55
IRON 59
IRON ISOTOPES
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KIDNEYS
LARGE INTESTINE
LIGHT NUCLEI
LIVER
LUNGS
LYMPH NODES
LYMPHATIC SYSTEM
MALE GENITALS
MAMMALS
MAN
MANGANESE 54
MANGANESE ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANS
OVARIES
PANCREAS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PRIMATES
PWR TYPE REACTORS
RADIOISOTOPES
REACTORS
RESPIRATORY SYSTEM
RUBIDIUM 86
RUBIDIUM ISOTOPES
SKELETON
SMALL INTESTINE
SODIUM 22
SODIUM ISOTOPES
SPLEEN
STOMACH
STRONTIUM 89
STRONTIUM 90
STRONTIUM 91
STRONTIUM ISOTOPES
TABLES
TESTES
THYMUS
THYROID
TISSUES
TRITIUM
URINARY TRACT
UTERUS
VERTEBRATES
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVING RADIOISOTOPES
YTTRIUM 90
YTTRIUM 91
YTTRIUM ISOTOPES
ZINC 65
ZINC ISOTOPES
ZIRCONIUM 95
ZIRCONIUM 97
ZIRCONIUM ISOTOPES