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	2012/01
形態種別	論文
査読	査読あり
標題	Tokamak plasma response to droplet spraying from melted plasma-facing components
執筆形態	共著・編著（代表編著を除く）
掲載誌名	NUCLEAR FUSION
出版社・発行元	INT ATOMIC ENERGY AGENCY
巻・号・頁	52(1)
国際共著	国際共著
著者・共著者	M. Z. Tokar,J. W. Coenen,V. Philipps,Y. Ueda
概要	High-Z materials such as tungsten are currently the potentially best candidates for plasma-facing components (PFCs) in future fusion devices. However, the threat of melting under uncontrolled conditions and the associated material redistribution and loss can place strict limits on the lifetime of PFCs and plasma operation conditions. In particular, material losses in the form of fine sprayed droplets can provide a very intensive source of impurities in the plasma core. In this paper, the plasma response to radiation losses from impurity particles produced by droplet evaporation is modelled for the conditions found in the tokamak TEXTOR. The interplay between tungsten spraying and plasma behaviour, resulting in the reduction of power transferred to the limiter and diminution of droplet production, is taken into account.
DOI	10.1088/0029-5515/52/1/013013
ISSN	0029-5515/1741-4326