山崎 大 
; 丸山 龍治 ; 青木 裕之 ; 花島 隆泰*; 阿久津 和宏*; 宮田 登*; 曽山 和彦
Yamazaki, Dai; Maruyama, Ryuji; Aoki, Hiroyuki; Hanashima, Takayasu*; Akutsu-Suyama, Kazuhiro*; Miyata, Noboru*; Soyama, Kazuhiko
This study developed a neutron-beam focusing supermirror for grazing-incidence small-angle neutron scattering (GISANS) measurements. It was fabricated by depositing NiC/Ti supermirror film with ion-beam sputtering on a precise elliptic surface of fused quartz figured using the elastic emission machining technique. Neutron measurements at a pulsed neutron reflectometer BL17 of MLF, J-PARC successfully demonstrated that the focusing supermirror enhances a beam intensity twentyfold compared with an optimally collimated beam, achieving the signal-to-background ratio of the focal spot as high as 500. The mirror can be readily installed and used at BL17.
発表言語 |
: | English |
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掲載資料名 |
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巻 |
: | 9 |
号 |
: | 2 |
ページ数 |
: | p.20_1 - 20_12 |
発行年月 |
: | 2025/06 |
キーワード |
: | neutron; focusing; supermirror; ion beam sputtering; GISANS; time-of-flight |
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使用施設 |
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論文解説 |
: | 斜入射中性子小角散乱を実現するためのゲイン20倍の集光ミラーを開発[ |
Access |
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