Design and Demonstration of a Neutron Spin Flipper for a New Neutron Reflectometer SHARAKU at J-PARC
Design and Demonstration of a Neutron Spin Flipper for a New Neutron Reflectometer SHARAKU at J-PARC
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J-PARC 新型中子反射计 SHARAKU 的中子自旋翻转器的设计和演示
DOI：
10.1016/j.phpro.2013.03.186
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yoshifumi Sakaguchi
中科院分区：
文献类型：
--
作者：
Hirotoshi Hayashida, Masayasu Takeda;Dai Yamazaki;Ryuji Maruyama;Kazuhiko Soyama;Masato Kubota;Tazuko Mizusawa;Noboru Yoshida;Yoshifumi Sakaguchi
A new neutron reflectometer SHARAKU with vertical sample-plane geometry was installed on the beam line 17 (BL17) at Materials and Life science experiment Facility (MLF) at J-PARC. Magnetism in a thin magnetic film is one of the main targets on SHARAKU and polarizing devices and neutron spin flippers are required. Since polarized neutrons of wavelength from 0.24nm to 0.64nm can be used on SHARAKU, a neutron spin flipper has to control white neutron beam. A two-coil neutron spin flipper (Drabkin spin flipper) is one of the powerful devices to control neutron spin with white beam. In this study, the two-coil flipper was designed and installed in SHARAKU. Demonstration of the two-coil flipper was also performed and polarization of more than 0.95 with wavelengths ranging from 0.24nm to 0.64nm was obtained.
