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Titolo:
Decontamination of candidate materials for ITER remote handling equipment exposed to tritiated moisture
Autore:
Oya, Y; Kobayashi, K; Shu, W; Hayashi, T; Ohira, S; Nakamura, H; Iwai, Y; Nishi, M; Higashijima, T; Obara, K; Shibanuma, K; Koizumi, K;
Indirizzi:
Japan Atom Energy Res Inst, Dept Fus Engn Res, Tritium Engn Lab, Tokai, Ibaraki 3191195, Japan Japan Atom Energy Res Inst Tokai Ibaraki Japan 3191195 aki 3191195, Japan Japan Atom Energy Res Inst, Dept Fus Engn Res, Reactor Struct Lab, Tokai, Ibaraki 3191195, Japan Japan Atom Energy Res Inst Tokai Ibaraki Japan 3191195 aki 3191195, Japan
Titolo Testata:
FUSION TECHNOLOGY
fascicolo: 2, volume: 39, anno: 2001,
parte:, 2
pagine: 1023 - 1027
SICI:
0748-1896(200103)39:2<1023:DOCMFI>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRITIUM; WATER; DESORPTION; SORPTION; SURFACE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Oya, Y Univ Tokyo, Radioisotope Ctr, Bunkyo Ku, 2-11-16 Yayoi, Tokyo 1130032, Japan Univ Tokyo 2-11-16 Yayoi Tokyo Japan 1130032 Tokyo 1130032, Japan
Citazione:
Y. Oya et al., "Decontamination of candidate materials for ITER remote handling equipment exposed to tritiated moisture", FUSION TECH, 39(2), 2001, pp. 1023-1027

Abstract

To optimize tritium removal procedure, behavior on typical materials used in the key parts of the ITER remote handling equipment, has been studied. The samples used in this study were stainless steel 304 with three types of surface finish, aluminum alloy A-5052 with two types of surface finish, three types of O-ring and two types of carbon fiber reinforced plastic. After the samples were exposed in the tritiated moisture environment, the concentration of tritium adsorbed on the specimen was measured and the decontamination experiments using gas purges with three different moisture concentrations were performed. It is found that tritium does not adsorb on stainlessmuch and oxide layer adsorbs significant tritium in Al alloy. The amount of tritium in rubber is found to relate with the permeability, solubility and tolerance for water vapor. In case of carbon fiber reinforced plastic, almost adsorbed tritium could not removed by gas purge.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 05:06:44