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Polarised neutron spectrometer, POLANO, at J-PARC attempts at understanding novel magnetism

新奇な磁性を理解に向けてJ-PARCの偏極中性子分光器POLANO

大山 研司*; 横尾 哲也*; 伊藤 晋一*; 鈴木 純一*; 岩佐 和晃*; 佐藤 卓*; 吉良 弘*; 坂口 佳史*; 猪野 隆*; 奥 隆之  ; 富安 啓輔*; 松浦 直人*; 平賀 晴弘*; 藤田 全基*; 木村 宏之*; 佐藤 匠*; 鈴木 淳市*; 清水 裕彦*; 有馬 孝尚*; 武田 全康 ; 金子 耕士  ; 日野 正裕*; 武藤 豪*; 野尻 浩之*; Lee, C.-H.*; Park, J.-G.*; Choi, S.*

Oyama, Kenji*; Yokoo, Tetsuya*; Ito, Shinichi*; Suzuki, Junichi*; Iwasa, Kazuaki*; Sato, Taku*; Kira, Hiroshi*; Sakaguchi, Yoshifumi*; Ino, Takashi*; Oku, Takayuki; Tomiyasu, Keisuke*; Matsuura, Masato*; Hiraka, Haruhiro*; Fujita, Masaki*; Kimura, Hiroyuki*; Sato, Takumi*; Suzuki, Junichi*; Shimizu, Hirohiko*; Arima, Takahisa*; Takeda, Masayasu; Kaneko, Koji; Hino, Masahiro*; Muto, Suguru*; Nojiri, Hiroyuki*; Lee, C.-H.*; Park, J.-G.*; Choi, S.*

We aim at constructing a polarisation analysis neutron spectrometer at Materials and Life Science Experimental Facility (MLF) of Japan Proton Accelerator Research Complex (J-PARC) based on a collaboration of KEK and Tohoku Univ. The proposed instrument, named POLANO, is designed as a compact chopper spectrometer with a rotary detector bank ($$L_{1}$$ = 17.5 m, $$L_{2}$$ = 2.5 m). At the first phase of the project, we will concentrate the $$E_{i} < $$ 30 meV region using a fan type bender supermirror spin analyser because rich scientific targets in basic and application materials science exist in this region. In the second phase, we will try to install a $$^{3}$$He spin filter analyser for the $$E_{f} >$$ 100 meV region. This project passed in the final board of J-PARC on SEP-2011, and the construction has been authorized already.

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