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

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

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1 Citation (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 languageEnglish
Article number012011
JournalJournal of Physics: Conference Series
Volume862
Issue number1
DOIs
Publication statusPublished - 2017 Jun 20
Event11th International Conference on Polarised Neutrons for Condensed Matter Investigations, PNCMI 2016 - Munich, Freising, Germany
Duration: 2016 Jul 42016 Jul 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    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. (2017). Development of a polarized 3He neutron spin filter for POLANO at J-PARC. Journal of Physics: Conference Series, 862(1), [012011]. https://doi.org/10.1088/1742-6596/862/1/012011