Research on glass cells for 3He neutron spin filters

Y. Sakaguchi, H. Kira, T. Oku, T. Shinohara, J. Suzuki, K. Sakai, M. Nakamura, K. Suzuya, K. Aizawa, M. Arai, M. Takeda, S. Wakimoto, D. Yamazaki, S. Koizumi, Y. Endoh, L. J. Chang, Y. Arimoto, T. Ino, H. M. Shimizu, T. KamiyamaK. Ohoyama, H. Hiraka, K. Tsutsumi, K. Yamada, K. Ohara, K. Kakurai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Glass cells play an important role in polarized 3He neutron spin filters. To evaluate the scattering and absorption contribution from glass cells during neutron scattering experiments, we measured small-angle scattering and neutron transmission in GE180 and other glasses. The small-angle neutron scattering measurements revealed that the glasses used for 3He spin filters have acceptably lower scattering: dΣ(Q)/dΩ=47×10 -4 cm-1 at Q=0.030.12 Å-1. The transmission measurement was performed at J-PARC. Neutron transmission of about 92% through empty GE180 cells was observed over a wide wavelength range 0.0147.0 Å. To pursue the possibility of being a structural influence on 3He spin relaxation in GE180 glass cells, we performed precise X-ray diffraction measurement using synchrotron radiation at SPring-8. From these measurements, a structural difference was observed among GE180 glasses with different thermal treatments.

Original languageEnglish
Pages (from-to)2443-2447
Number of pages5
JournalPhysica B: Condensed Matter
Volume406
Issue number12
DOIs
Publication statusPublished - 2011 Jun

Keywords

  • Glasses
  • He neutron spin filter
  • He polarization

ASJC Scopus subject areas

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

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