Development of a polarized 3He neutron spin filter for POLANO at J-PARC

T. Ino; M. Ohkawara; K. Ohoyama; T. Yokoo; S. Itoh; Y. Nambu; M. Fujita; H. Kira; H. Hayashida; K. Hiroi; K. Sakai; T. Oku; K. Kakurai

doi:10.1088/1742-6596/862/1/012011

Development of a polarized ³He neutron spin filter for POLANO at J-PARC

T. Ino, M. Ohkawara, K. Ohoyama, T. Yokoo, S. Itoh, Y. Nambu, M. Fujita, H. Kira, H. Hayashida, K. Hiroi, K. Sakai, T. Oku, K. Kakurai

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We have developed a polarized ³He neutron spin filter (NSF) for a new polarized neutron spectrometer, POLANO, at the Japan Proton Accelerator Research Complex (J-PARC). POLANO aims to utilize high energy neutrons polarized by a ³He NSF and spin analyzed by an array of magnetic supermirrors for inelastic neutron scattering. The ³He gas is continuously polarized in-situ by spin-exchange optical pumping to provide a highly and stably polarized neutron beam. The POLANO ³He NSF is designed to polarize neutrons with energies as high as 200 meV and fit in a restricted space. It is equipped with adiabatic fast passage NMR that enables one to flip the ³He spins, and consequently, the neutron spins.

Original language	English
Article number	012011
Journal	Journal of Physics: Conference Series
Volume	862
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/862/1/012011
Publication status	Published - 2017 Jun 20
Event	11th International Conference on Polarised Neutrons for Condensed Matter Investigations, PNCMI 2016 - Munich, Freising, Germany Duration: 2016 Jul 4 → 2016 Jul 7

ASJC Scopus subject areas

Physics and Astronomy(all)

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Development of a polarized ³He neutron spin filter for POLANO at J-PARC. / Ino, T.; Ohkawara, M.; Ohoyama, K.; Yokoo, T.; Itoh, S.; Nambu, Y.; Fujita, M.; Kira, H.; Hayashida, H.; Hiroi, K.; Sakai, K.; Oku, T.; Kakurai, K.

In: Journal of Physics: Conference Series, Vol. 862, No. 1, 012011, 20.06.2017.

Research output: Contribution to journal › Conference article › peer-review

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abstract = "We have developed a polarized 3He neutron spin filter (NSF) for a new polarized neutron spectrometer, POLANO, at the Japan Proton Accelerator Research Complex (J-PARC). POLANO aims to utilize high energy neutrons polarized by a 3He NSF and spin analyzed by an array of magnetic supermirrors for inelastic neutron scattering. The 3He gas is continuously polarized in-situ by spin-exchange optical pumping to provide a highly and stably polarized neutron beam. The POLANO 3He NSF is designed to polarize neutrons with energies as high as 200 meV and fit in a restricted space. It is equipped with adiabatic fast passage NMR that enables one to flip the 3He spins, and consequently, the neutron spins.",

author = "T. Ino and M. Ohkawara and K. Ohoyama and T. Yokoo and S. Itoh and Y. Nambu and M. Fujita and H. Kira and H. Hayashida and K. Hiroi and K. Sakai and T. Oku and K. Kakurai",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.; 11th International Conference on Polarised Neutrons for Condensed Matter Investigations, PNCMI 2016 ; Conference date: 04-07-2016 Through 07-07-2016",

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AU - Ino, T.

AU - Ohkawara, M.

AU - Ohoyama, K.

AU - Yokoo, T.

AU - Itoh, S.

AU - Nambu, Y.

AU - Fujita, M.

AU - Kira, H.

AU - Hayashida, H.

AU - Hiroi, K.

AU - Sakai, K.

AU - Oku, T.

AU - Kakurai, K.

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AB - We have developed a polarized 3He neutron spin filter (NSF) for a new polarized neutron spectrometer, POLANO, at the Japan Proton Accelerator Research Complex (J-PARC). POLANO aims to utilize high energy neutrons polarized by a 3He NSF and spin analyzed by an array of magnetic supermirrors for inelastic neutron scattering. The 3He gas is continuously polarized in-situ by spin-exchange optical pumping to provide a highly and stably polarized neutron beam. The POLANO 3He NSF is designed to polarize neutrons with energies as high as 200 meV and fit in a restricted space. It is equipped with adiabatic fast passage NMR that enables one to flip the 3He spins, and consequently, the neutron spins.

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