Modelling elemental tritium deposition, conversion and reemission using Ontario Hydro's tritium dispersion code

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Fusion Technol.; (United States)

OSTI ID:6135037

Russell, S B; Ogram, G L

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), Journal Name: Fusion Technol.; (United States) Vol. 14:2; ISSN FUSTE
• Country of Publication: United States
• Language: English

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ATOMIC ENERGY OF CANADA LTD
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CANADIAN ORGANIZATIONS
CANDU TYPE REACTORS
CHALK RIVER NUCLEAR LABS
COMPUTER CODES
DATA
DEPOSITION
DISPERSIONS
DOUGLAS POINT ONTARIO REACTOR
ENVIRONMENTAL IMPACTS
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
EXPERIMENTAL REACTORS
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LEACHATES
LIGHT NUCLEI
MASS TRANSFER
MATHEMATICAL MODELS
MIXTURES
NATIONAL ORGANIZATIONS
NATURAL URANIUM REACTORS
NUCLEAR FACILITIES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PHWR TYPE REACTORS
PRESSURE TUBE REACTORS
RADIOISOTOPES
RADIONUCLIDE MIGRATION
REACTORS
RESEARCH AND TEST REACTORS
SOILS
SOLUTIONS
THEORETICAL DATA
THERMAL REACTORS
TRITIUM
YEARS LIVING RADIOISOTOPES