大強度パルス中性子源施設における3He中性子スピンフィルターの実用化研究

奥 隆之; 吉良 弘; 林田 洋寿; 酒井 健二; 廣井 孝介; 篠原 武尚; 猪野 隆; 大河原 学; 大山 研司; 高田 慎一; 大石 一城; 岩瀬 裕希; 宮田 登; 阿久津 和宏; 坂口 佳史; 武田 全康; 鈴木 淳市; 相澤 一也; 新井 正敏; 加倉井 和久

doi:10.5611/hamon.24.4_250

Development of ³He Neutron Spin Filter for the Application at an Intense Pulsed Neutron Source Facility

Takayuki Oku, Hiroshi Kira, Hirotoshi Hayashida, Kenji Sakai, Kosuke Hiroi, Takenao Shinohara, Takashi Ino, Manabu Ohkawara, Kenji Ohoyama, Shin-ichi Takata, Kazuki Ohishi, Hiroki Iwase, Noboru Miyata, Kazuhiro Akutsu, Yoshifumi Sakaguchi, Masayasu Takeda, Jun-ichi Suzuki, Kazuya Aizawa, Masatoshi Arai, Kazuhisa Kakurai

Author information

Keywords: Neutron Polarizer, ³He neutron spin filter, SEOP, Polarized neutrons

JOURNAL FREE ACCESS

2014 Volume 24 Issue 4 Pages 250-257

DOI https://doi.org/10.5611/hamon.24.4_250

Details

Abstract

We have been developing a ³He neutron spin filter (NSF) for efficient utilization of pulsed neutrons, since it can polarize neutrons effectively in a wide energy range. In order to apply the ³He-NSF to experiments at an intense pulsed neutron experimental facility such as the J-PARC, it is important to make the system stable and easy to setup and operate, because the system is located inside a radiation shield for high energy gamma ray and neutrons. In this study, we have developed compact laser optics with a volume holographic grating (VHG) element for a spin-exchange optical pumping (SEOP) system, and composed an in-situ SEOP ³He-NSF. Current status in the development and application of the in-situ SEOP ³He-NSF at J-PARC is reported.

Corresponding author

Register with J-STAGE for free!