Magnetic Shield Design of In-situ SEOP Polarized 3He Neutron Spin Filter System
- Kira, H.
- Sakaguchi, Y.
- Suzuki, J.
- Oku, T.
- Nakamura, M.
- Arai, M.
- Kakurai, K.
- Endo, Y.
- Arimoto, Y.
- Ino, T.
- Shimizu, H.M.
- Kamiyama, T.
- Ohoyama, K.
- Hiraka, H.
- Tsutsumi, K.
- Yamada, K.
- Chang, L.-J.
Publication date
December 2013
DOI Publisher
The Authors. Published by Elsevier B.V.Abstract
AbstractA polarized 3He neutron spin filter requires a suitably homogeneous magnetic environment to avoid depolarization of 3He nuclear spin. In the present study, we discussed the required performance of the magnetic shield for an in-situ spin exchange optical pumping neutron spin filter system and designed a magnetic shield with T1mag > 100h under a magnetic field of 3.5 mT perpendicular to the guide field. We then constructed the magnetic shield and confirmed its performance. Finally, we succeeded in developing a magnetic shield for a polarized 3He neutron spin filter system for J-PARC
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