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	2013
形態種別	論文
査読	査読あり
標題	Characteristics of tungsten and carbon dusts in JT-60U and evaluation of hydrogen isotope retention
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 B.V.
巻・号・頁	438(SUPPL),pp.S664-S667
著者・共著者	Naoko Ashikawa,Nobuyuki Asakura,Masakatsu Fukumoto,Takao Hayashi,Yoshio Ueda,Takeo Muroga
概要	Dust was collected after the installation of tungsten (W)-coated tiles in the outer divertor of the P-8 section in JT-60U (2010). Dusts containing tungsten were analyzed by energy-dispersive X-ray spectrometry (EDX) and X-ray photoelectron spectroscopy (XPS). The tungsten intensities measured by EDX and XPS were obtained dusts from the under-dome regions. From a comparison of a numerical analysis of the tungsten deposition layer and analytical results for the atomic concentrations of tungsten, it was determined that dust containing tungsten was produced on the outer dome wing. Hydrogen isotope retention in the dust particles was analyzed by thermal desorption spectrometry (TDS). Using this analytical method, a wide range of dust particle sizes can be retained. The hydrogen isotope retention on dust particles in JT-60U (measured using a few milligrams of dust particles) is shown, and it was approximately 1.5 × 1021 (H2 + HD + D2)/g. © 2013 Published by Elsevier B.V.
DOI	10.1016/j.jnucmat.2013.01.140
ISSN	0022-3115