Development and test of SEOP neutron spin filter in Japan

H. Kira, Y. Sakaguchi, T. Oku, J. Suzuki, M. Nakamura, M. Arai, K. Kakurai, Y. Endo, Y. Arimoto, T. Ino, H. M. Shimizu, T. Kamiyama, K. Tsutsumi, K. Ohoyama, H. Hiraka, K. Yamada, L. J. Chang

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We have begun the development of an in-situ spin-exchange optical pumping (SEOP) system aiming to use it as a neutron spin filter for incident beam polarization at the Japan Proton Accelerator Research Complex (J-PARC). To use it, it is recommended that the optics be adjusted easily, have high stability, and have a small size. In this paper we improved our previous SEOP system aiming to use it in J-PARC and performed a neutron beam test at the JRR-3 NOP beamline to see the performance of the neutron spin filter (NSF). The polarization of the 3He gas reached 73%. This paper gives the present status of the development of in-situ SEOP system in J-PARC.

Original languageEnglish
Pages (from-to)2433-2435
Number of pages3
JournalPhysica B: Condensed Matter
Volume406
Issue number12
DOIs
Publication statusPublished - 2011 Jun

Keywords

  • Neutron spin filter
  • Polarized helium-3
  • Spin exchange optical pumping

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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