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	1991/07
形態種別	論文
査読	査読あり
標題	MEASUREMENTS OF ION ANGULAR VELOCITY OF FIELD REVERSED CONFIGURATION WITH SUPPRESSED ROTATIONAL INSTABILITY
執筆形態	共著・編著（代表編著を除く）
掲載誌名	JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
掲載区分	国外
出版社・発行元	JAPAN J APPLIED PHYSICS
巻・号・頁	30(7),pp.1475-1481
著者・共著者	Y ITO,N ARAI,Y UEDA,S SUGIMOTO,S OKADA,S GOTO,T ISHIMURA
概要	The angular velocity OMEGA-c of the impurity ions (CV) is measured spectroscopically for the FRC (Field-Reversed-Configuration) plasmas confined in the theta-pinch region and translated into the confinement region with magnetic mirror field. The FRC plasma confined in the theta-pinch region becomes unstable due to the n = 2 rotational instability which can be suppressed by the multipole magnetic field. The ion rotation in the stabilized plasma is almost equal to the velocity in the unstabilized case, suggesting that the multipole field acts on the plasma surface due to the skin effect and suppresses the instability without changing the field configuration within the separatrix radius. The FRC plasma translated in the confinement region is stable without destructive instability. The ion rotation in such a plasma indicates that a suppression mechanism of the n = 2 instability exists, which is excited by the rotation in the confinement region.
DOI	10.1143/JJAP.30.1475
ISSN	0021-4922/1347-4065