本研究では、低粒子エネルギー領域における金属表面からの反射水素原子を水素原子バルマーアルファ(Hα)発光ドップラー分光計測によって検出する実験系を構築し、ヘリウムによるタングステン表面の微細構造化が水素粒子反射特性に与える影響を調査した。表面構造を持たないタングステンと比較して、Fuzz構造をもつタングステン試料では200 - 300 eVの入射粒子エネルギー領域にて粒子反射係数が1/2程度まで減少することが明らかになった。 / In this study, the author developed a measurement technique to detect hydrogen atoms reflected from a metal surface based upon the Doppler-spectroscopy of hydrogen Balmer-(Hα) emission. The developed measurement technique is a promising method to investigate the hydrogen particle reflection properties in low incident particle energy range, which has been considered difficult. The author applied the developed method into practice to clarify the effects of helium (He) induced tungsten (W) surface nanostructure upon the low energy hydrogen particle reflection. A W-fuzz sample was found to reduce the particle reflection coefficient by 1/2 of the flat reference W surface in low incident particle energy range of 200-300 eV. / 博士(工学) / Doctor of Philosophy in Engineering / 同志社大学 / Doshisha University
Identifer | oai:union.ndltd.org:doshisha.ac.jp/oai:doshisha.repo.nii.ac.jp:00001441 |
Date | 22 March 2018 |
Creators | 土居 謙太, Kenta Doi |
Source Sets | Doshisha University |
Language | English |
Detected Language | English |
Type | Thesis or Dissertation |
Format | application/pdf |
Source | https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13071680/?lang=0 |
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