A New polarized neutron reflectometer SHARAKU at Material Life Science Facility (MLF) at Japan Proton Accelerator Research Complex (J-PARC)

J-PARC物質・生命科学研究施設の新しい偏極中性子反射率計写楽

武田 全康 ; 山崎 大 ; 曽山 和彦 ; 林田 洋寿; 藤 健太郎 ; 山岸 秀志*; 片桐 政樹*; 坂佐井 馨 ; 丸山 龍治  ; 水沢 多鶴子*; 宮田 登*; 坂口 佳史*; 佐藤 淳一*; 笠井 聡*; 桐山 幸治*; 久保田 正人; 朝岡 秀人 ; 阿久津 和宏*; 相澤 一也 ; 新井 正敏; 稲村 泰弘 ; 伊藤 崇芳*; 金子 耕士  ; 中村 龍也 ; 中谷 健 ; 及川 健一  ; 大原 高志  ; 篠原 武尚  ; 鈴木 淳市*; 鈴谷 賢太郎; 田村 格良 ; 平野 辰巳*

Takeda, Masayasu; Yamazaki, Dai; Soyama, Kazuhiko; Hayashida, Hirotoshi; To, Kentaro; Yamagishi, Hideshi*; Katagiri, Masaki*; Sakasai, Kaoru; Maruyama, Ryuji; Mizusawa, Tazuko*; Miyata, Noboru*; Sakaguchi, Yoshifumi*; Sato, Junichi*; Kasai, Satoshi*; Kiriyama, Koji*; Kubota, Masato; Asaoka, Hidehito; Akutsu, Kazuhiro*; Aizawa, Kazuya; Arai, Masatoshi; Inamura, Yasuhiro; Ito, Takayoshi*; Kaneko, Koji; Nakamura, Tatsuya; Nakatani, Takeshi; Oikawa, Kenichi; Ohara, Takashi; Shinohara, Takenao; Suzuki, Junichi*; Suzuya, Kentaro; Tamura, Itaru; Hirano, Tatsumi*

A new polarized neutron reflectometer (SHARAKU) was installed at the beam line 17 (BL17) of MLF as the second neutron reflectometer in J-PARC. This reflectometer was designed for a variety of surface science applications except the free surface and interface investigation. Therefore, this reflectometer has the capability of performing full polarization analysis, grazing incidence small-angle neutron scattering (GISANS), and the grazing incidence diffraction (GID) measurements. Four kinds of detectors are employed to cover a wide q-range with a proper q-resolution. One is a point detector, and the other three are two-dimensional position-sensitive-detectors. A polarizer and analyzer both of which consist of Fe/Si polarizing supermirrors and two-coil flippers are used for the polarization analysis. We will report the outline design specification, and the basic performance of this new reflectometer.