Development of a tritium dispersion code

Conference · Sun Sep 01 04:00:00 EDT 1985 · Fusion Technol.; (United States)

OSTI ID:5933335

Bell, R P; Davis, M W; Joseph, S; Wong, K Y

This paper describes the development and verification of a computer code designed to calculate the radiation dose to man following acute or chronic atmospheric releases of tritium gas and oxide from a point source. The Ontario Hydro Tritium Dispersion Code calculates tritium concentrations in air, soil, and vegetation and doses to man resulting from inhalation/immersion and ingestion of food, milk meat and water. The deposition of HT to soil, conversion of HT to HTO by soil enzymes and resuspension of HTO to air have been incorporated into the terrestrial compartment model and are unique features of the code. Sensitivity analysis has identified the HT deposition velocity and the equivalent water depth of the vegetation compartment as two parameters which have a strong influence on dose calculations. Tritium concentrations in vegetation and soil calculated by the code were in reasonable agreement with experimental results. The radiological significance of including the mechanisms of HT to HTO conversion and resuspension of HTO to air is illustrated.

• Research Organization: Monserco Limited, Mississauga, Ontario
• OSTI ID: 5933335
• Report Number(s): CONF-850405-
• Conference Information: Journal Name: Fusion Technol.; (United States) Journal Volume: 8:2
• Country of Publication: United States
• Language: English

Related Subjects

500300* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
510300 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ATMOSPHERIC CIRCULATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHALCOGENIDES
COMPUTER CODES
COMPUTERIZED SIMULATION
CONVERSION
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL EXPOSURE PATHWAY
ENVIRONMENTAL TRANSPORT
FOOD CHAINS
HAZARDS
HEALTH HAZARDS
HUMAN POPULATIONS
HYDROGEN ISOTOPES
HYDROGEN TRITIDE
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
MASS TRANSFER
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PLANTS
POPULATIONS
RADIATION HAZARDS
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SENSITIVITY ANALYSIS
SIMULATION
SOILS
TRITIUM
TRITIUM COMPOUNDS
TRITIUM OXIDES
YEARS LIVING RADIOISOTOPES