Conversion of tritium gas to tritiated water in air
Journal Article
·
· Fusion Technology
OSTI ID:219722
- Japan Atomic Energy Research Inst., Ibaraki (Japan)
The conversion reaction of tritium gas to tritiated water in dry air has been studied using low-concentration tritium gases which have three different hydrogen isotope compositions. The conversion was directly proportional to a ratio of radioactivity of T{sub 2} to that of total tritium. This demonstrates that the T{sub 2} decay process is predominant for the conversion reaction at low initial tritium concentrations. First-order rate constants for the reaction in dry air are found to be independent of initial tritium concentration. A model to predict the rate constant of the production of tritiated water from T{sub 2} in dry air has been developed. The modeling results show that the T{sub 2} decay process is predominant at low concentrations, while O{sup +} and N{sub 2}{sup +} ions formed through tritium beta-ray induced reactions play important roles at high concentrations. 18 refs., 6 figs., 1 tab.
- OSTI ID:
- 219722
- Report Number(s):
- CONF-930937--
- Journal Information:
- Fusion Technology, Journal Name: Fusion Technology Journal Issue: 2T Vol. 27; ISSN 0748-1896; ISSN FUSTE8
- Country of Publication:
- United States
- Language:
- English
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