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	1997
形態種別	論文
査読	査読あり
標題	Impurity release from high Z test limiters immersed in TEXTOR-94 edge plasmas
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	241,pp.799-803
国際共著	国際共著
著者・共著者	M Wada,Philipps, V,A Pospieszczyk,B Unterberg,B Schweer,L Koenen,U Koegler,M Tokar,J Winter,K Ohya,Y Ueda,T Tanabe,D Larsson
概要	A W test limiter has been inserted into the plasma edge of TEXTOR beyond the magnetic surface of the main ALT graphite limiter, and the release of neutral W as well as carbon and oxygen are examined spectroscopically. The penetration depth of neutral W has decreased significantly with increasing plasma density and it is as small as 1.2 mm when the local plasma density at the magnetic surface of the limiter increases up to 1.5 x 10(19) m(-3). The flux of neutral W decreases as the local density increases, while the C and D fluxes increase. Radial intensity distributions of CII line spectrum emission have indicated larger penetrations of C ions emitted from a W limiter than those from a C limiter. The penetration length of OII emission from a W limiter is similar to that from a C limiter and much smaller than that of CII.
DOI	10.1016/S0022-3115(96)00609-5
ISSN	0022-3115/1873-4820
NAID	30002371589