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In a fusion reactor building, surfaces will over a period of time become contaminated by tritium, which will then be gradually released into the atmosphere and may have a significant impact on the total dose received by workers. An experimental set-up has been used for static exposure tests to study uptake and oxidation of tritium in ambient air in the presence of selected surfaces. HT and HTO concentrations are measures as a function of time, the total amount of absorbed tritium is measured by post-examination decontamination of the surface. The present paper describes the experimental set-up together with the laboratory procedure, and discusses the first results obtained using stainless steel and aluminium samples. The results are compared with other experimental data obtained from previous exposure tests. Furthermore, the present experiment is simulated by using the TMAP4 code (Tritium Migration Analysis Program). The simulation assumptions are discussed, and the code predictions are compared to the experimental data actually obtained.

Additional information

Authors: HOUSIADAS C, JRC Ispra (IT);DOUGLAS K, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 18th Symposium on Fusion Technology, Karlsruhe (DE), August 22-26, 1994
Availability: Available from (1) as Paper EN 38493 ORA
Record Number: 199511123 / Last updated on: 1995-08-22
Original language: en
Available languages: en
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