Application of hot-pressed Ge-crystal monochromators for reactor-based neutron beam experiments

Haruhiro Hiraka, Yuko Miyake, Sun Chang Che, Naoki Murakami, Manabu Ohkawara, Keiji Nemoto, Kazumasa Horigane, Kenji Ohoyama, Yasuo Yamaguchi, Kazuyoshi Yamada

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A renewed Ge-crystal monochromator was installed in a neutron spectrometer at JRR-3. The beam size at the sample position is vertically about 1.5 times as large as before, while the neutron luminosity is unchanged. Wellcollimated, monochromatic beams with quite different incident energy (Ei) are available through a slight rotation in the monochromator-crystal angle by making use of discrete Bragg reflections of Ge. The ability of inelastic-neutronscattering measurements is examined through observation of magnetic Brillouin scattering with extremely high resolution and with a supplementary use of two Eis.

Original languageEnglish
Article numberSB012
Journaljournal of the physical society of japan
Volume80
Issue numberSUPPL. B
DOIs
Publication statusPublished - Dec 1 2011
Externally publishedYes

Keywords

  • Brillouin scattering
  • Ge monochromator
  • Triple-axis neutron spectrometer

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Hiraka, H., Miyake, Y., Che, S. C., Murakami, N., Ohkawara, M., Nemoto, K., Horigane, K., Ohoyama, K., Yamaguchi, Y., & Yamada, K. (2011). Application of hot-pressed Ge-crystal monochromators for reactor-based neutron beam experiments. journal of the physical society of japan, 80(SUPPL. B), [SB012]. https://doi.org/10.1143/JPSJS.80SB.SB012