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	1995/04
形態種別	論文
査読	査読あり
標題	EFFECTS OF IMPURITIES RELEASED FROM HIGH-Z TEST LIMITER ON PLASMA PERFORMANCE IN TEXTOR
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	220,pp.240-243
担当区分	筆頭著者
国際共著	国際共著
著者・共著者	Y UEDA,T TANABE,PHILIPPS, V,L KONEN,A POSPIESZCYK,U SAMM,B SCHWEER,B UNTERBERG,M WADA,N HAWKES,N NODA
概要	To investigate the feasibility of high Z metals as plasma facing materials, a Mo test limiter was inserted into the TEXTOR edge plasma and the Mo content in the core plasma and its flux from the limiter have been observed. In OH plasma the additional radiation due to Mo impurities increased with line averaged density (n) over bar(e). Beyond (n) over bar(e) of about 3 x 10(19) m(-3), the central radiation increased strongly with time and a hollow temperature profile appeared. In contrast, Mo impurity radiation decreased with (n) over bar(e) in NBI (co-injection) plasma and no clear Mo accumulation in the plasma center was observed. However, when the edge plasma was cooled by neon injection in NBI plasma, the Mo concentration in the plasma center substantially increased. The Mo flux from the limiter showed no remarkable change during the OH and NBI density scan or with neon cooling. The possible reasons for the Mo behavior in the core plasma are discussed.
DOI	10.1016/0022-3115(94)00420-X
ISSN	0022-3115
NAID	30002367701