ウエダ　ヨシオ   Ueda Yoshio   上田　良夫    所属   追手門学院大学  理工学部 電気電子工学科    職種   教授
言語種別	英語
発行・発表の年月	1998/10
形態種別	論文
査読	査読あり
標題	High-heat-flux-exposure-experiments of a tungsten-test-limiter at TEXTOR-94
執筆形態	共著・編著（代表編著を除く）
掲載誌名	JOURNAL OF NUCLEAR MATERIALS
掲載区分	国外
出版社・発行元	ELSEVIER SCIENCE BV
巻・号・頁	258(Pt.A),pp.853-857
国際共著	国際共著
著者・共著者	M Wada,T Tanabe,Philipps, V,B Unterberg,A Pospieszczyk,B Schweer,J Rapp,Y Ueda,K Ohya,T Ohgo,N Noda
概要	To test the performance of tungsten as a plasma facing material, a small test limiter made of solid pure W was immersed in a TEXTOR plasma. A surface temperature in excess of 3000 K and the rate of temperature increase close to 2000 K/s was measured for the auxiliary heating conditions. These values corresponded to a power flux density of more than 40 MW/m(2) based on the calculations of a heat transfer model. The test limiter showed no observable degradation after exposure to this high heat flux density. The oxygen flux from the test limiter showed an increase during intense plasma exposure. However, no enhancement in the normalized W yield was observed when the W release was normalized to the C and O flux to the limiter, and the W release appeared to be dominated by physical sputtering. (C) 1998 Elsevier Science B.V. All rights reserved.
DOI	10.1016/S0022-3115(98)00258-X
ISSN	0022-3115
NAID	30002370296