Magnetic shield design of in-situ SEOP polarized 3He neutron spin filter system

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

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

A 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 > 100 h 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.

Original languageEnglish
Pages (from-to)200-205
Number of pages6
JournalPhysics Procedia
Volume42
DOIs
Publication statusPublished - 2013 Jan 1
Event9th International Workshop on Polarised Neutrons in Condensed Matter Investigations, PNCMI 2012 - Paris, France
Duration: 2012 Jul 22012 Jul 5

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filters
neutrons
spin exchange
optical pumping
depolarization
nuclear spin
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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. / Magnetic shield design of in-situ SEOP polarized 3He neutron spin filter system. In: Physics Procedia. 2013 ; Vol. 42. pp. 200-205.
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abstract = "A 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 > 100 h 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.",
author = "H. Kira and Y. Sakaguchi and J. Suzuki and T. Oku and M. Nakamura and M. Arai and K. Kakurai and Y. Endo and Y. Arimoto and T. Ino and Shimizu, {H. M.} and T. Kamiyama and K. Ohoyama and H. Hiraka and K. Tsutsumi and K. Yamada and Chang, {L. J.}",
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Kira, H, Sakaguchi, Y, Suzuki, J, Oku, T, Nakamura, M, Arai, M, Kakurai, K, Endo, Y, Arimoto, Y, Ino, T, Shimizu, HM, Kamiyama, T, Ohoyama, K, Hiraka, H, Tsutsumi, K, Yamada, K & Chang, LJ 2013, 'Magnetic shield design of in-situ SEOP polarized 3He neutron spin filter system', Physics Procedia, vol. 42, pp. 200-205. https://doi.org/10.1016/j.phpro.2013.03.195

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.

In: Physics Procedia, Vol. 42, 01.01.2013, p. 200-205.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Magnetic shield design of in-situ SEOP polarized 3He neutron spin filter system

AU - Kira, H.

AU - Sakaguchi, Y.

AU - Suzuki, J.

AU - Oku, T.

AU - Nakamura, M.

AU - Arai, M.

AU - Kakurai, K.

AU - Endo, Y.

AU - Arimoto, Y.

AU - Ino, T.

AU - Shimizu, H. M.

AU - Kamiyama, T.

AU - Ohoyama, K.

AU - Hiraka, H.

AU - Tsutsumi, K.

AU - Yamada, K.

AU - Chang, L. J.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - A 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 > 100 h 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.

AB - A 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 > 100 h 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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