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	1995/03
形態種別	論文
査読	査読あり
標題	EROSION YIELD OF GRAPHITE AND B4C IRRADIATED BY HIGH-FLUX DEUTERIUM BEAMS
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	28(1/4),pp.170-175
著者・共著者	M ISOBE,Y OHTSUKA,H SHINONAGA,Y UEDA,B KYOH,M NISHIKAWA
概要	To investigate the erosion of graphite and B4C under high particle flux loading, such as in a fusion reactor, two types of specimen, i.e. isotropic graphite PD330S and conversion B4C, were irradiated by a high flux neutral beam generator. The erosion yield wlas estimated from the weight loss of specimens, as measured by a microbalance. A neutral deuterium beam with an energy of 5.5 kV was irradiated on the specimens. The beam power measured by a calorimeter array was 4.5 MW m(-2). The main composition of the beam was D-3, so that the average particle energy was about 1.5 keV and the particle flux of the beam was 1.5 x 10(22) m(-2) s(-1). The duration of the single-beam pulse was 0.72 s and the surface temperature of the specimens rose by about 300 K during each beam irradiation. To investigate the temperature dependence of the erosion yield, the experiments were performed at initial specimen temperatures of 523, 773 and 973 K.
DOI	10.1016/0920-3796(94)00104-F
ISSN	0920-3796
NAID	30009896600