Modelling elemental tritium deposition, conversion and reemission using Ontario Hydro's tritium dispersion code
A mathematical model and associated computer code is being developed to assess the potential radiological impact of atmospheric releases of elemental tritium, HT, and tritium oxide, HTO, from nuclear facilities. Of the two forms of tritium under consideration, the behaviour of HT in the environment is more complex. This paper describes the theoretical basis of the Ontario Hydro Tritium Dispersion Code (OHTDC) for modelling HT deposition to soil, conversion of HT to HTO and reemission of HTO from soil. The OHTDC predictions were compared to field measured HT and HTO concentrations in air during the HT release experiments at Chalk River Nuclear Laboratories, Canada in August 1986 and June 1987, and good agreement was found. These results validate the code for radiological safety assessments of HT and HTO emissions from fusion facilities such as the International Thermonuclear Experimental Reactor (ITER) and other nuclear sites that manage tritium.
- Research Organization:
- Ontario Hydro, Toronto, Ontario (CA)
- OSTI ID:
- 6135037
- Journal Information:
- Fusion Technol.; (United States), Vol. 14:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
U. S. team measurements during the June 1987 experimental HT release at the Chalk River Nuclear Laboratories, Ontario, Canada
US team measurements during the June 1987 experimental HT release at the Chalk River Nuclear Laboratories, Ontario, Canada
Related Subjects
54 ENVIRONMENTAL SCIENCES
TRITIUM
ENVIRONMENTAL IMPACTS
CHALK RIVER NUCLEAR LABS
COMPUTER CODES
DEPOSITION
DOUGLAS POINT ONTARIO REACTOR
EXPERIMENTAL DATA
EXPERIMENTAL REACTORS
LEACHATES
MATHEMATICAL MODELS
NUCLEAR FACILITIES
RADIONUCLIDE MIGRATION
SOILS
THEORETICAL DATA
ATOMIC ENERGY OF CANADA LTD
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CANADIAN ORGANIZATIONS
CANDU TYPE REACTORS
DATA
DISPERSIONS
ENVIRONMENTAL TRANSPORT
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
MASS TRANSFER
MIXTURES
NATIONAL ORGANIZATIONS
NATURAL URANIUM REACTORS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PHWR TYPE REACTORS
PRESSURE TUBE REACTORS
RADIOISOTOPES
REACTORS
RESEARCH AND TEST REACTORS
SOLUTIONS
THERMAL REACTORS
YEARS LIVING RADIOISOTOPES
700206* - Fusion Power Plant Technology- Environmental Aspects
700201 - Fusion Power Plant Technology- Blanket Engineering
500300 - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)
510300 - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (-1989)