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	2009/06
形態種別	論文
査読	査読あり
標題	Effects of tungsten surface conditions on carbon deposition
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	390-91(1),pp.44-48
担当区分	筆頭著者
国際共著	国際共著
著者・共著者	Y. Ueda,M. Fukumoto,A. Yamawaki,Y. Soga,Y. Ohtsuka,S. Brezinsek,T. Hirai,A. Kirschner,A. Kreter,A. Litnovsky,V. Philipps,A. Pospieszczyk,B. Schweer,G. Sergienko,T. Tanabe,K. Sugiyama,K. Ohya,N. Ohno
概要	New results are shown on carbon deposition and mixed layer formation on tungsten Surfaces in TEXTOR test limiter experiments by varying surface conditions such as surface toughness (R-a: 10 nm-1 mu m), temperature (300-900 degrees C) and initial surface carbon concentration (0-60%). it is found that surface roughness significantly affected C deposition for both W and graphite substrates such as increase in the C deposition and extension of the C deposition area. Not only the surface roughness parameter R-a but also detailed surface morphology closely relate to C deposition on tungsten. Carbon deposition hardly occurred at least above similar to 520 degrees C on tungsten under TEXTOR edge plasma conditions. Carbon behavior on tungsten at 770-930 degrees C depends on the incident carbon ion energy. Although tungsten and carbon mixing layers affected C deposition, their effect is less than the roughness effect. (C) 2009 Published by Elsevier B.V.
DOI	10.1016/j.jnucmat.2009.01.042
ISSN	0022-3115/1873-4820