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	1998/09
形態種別	論文
査読	査読あり
標題	Detailed study of radiation enhanced sublimation of graphite under high flux beam irradiation
執筆形態	共著・編著（代表編著を除く）
掲載誌名	FUSION ENGINEERING AND DESIGN
掲載区分	国外
出版社・発行元	ELSEVIER SCIENCE SA
巻・号・頁	41(1-4),pp.55-61
担当区分	筆頭著者
著者・共著者	Y Ueda,K Shiota,Y Kitamura,Y Ohtsuka,Isobe, I,M Nishikawa
概要	The dependence of the erosion yield on angle of incidence and irradiation flux for graphite materials at elevated temperature (1980 K) and at room temperature was studied in high flux regime close to edge plasma condition. Irradiation was made with 5 keV Ar beam with the highest flux of 10(21) m(-2) s(-1). It is found that similar reduction of the yield at 1980 K with flux was observed for isotropic graphite (IG-430 and ISO-630) and pyrolytic graphite at normal incidence and for IG-430 at 60 degrees incidence. The yield at RT (physical sputtering) increased with angle of incidence in the same manner for isotropic and pyrolytic graphite. The irradiated surface of pyrolytic graphite at RT shows dense spinous processes, which could relate to the result.
DOI	10.1016/S0920-3796(98)00187-2
ISSN	0920-3796
NAID	80010655570