Versatile inelastic neutron spectrometer (VINS) project for J-PARC

T. J. Sato, O. Yamamuro, K. Hirota, M. Shibayama, H. Yoshizawa, S. Itoh, S. Watanabe, T. Asami, K. Kindo, Y. Uwatoko, T. Kanaya, N. Higashi, K. Ueno

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We have proposed a Versatile Inelastic Neutron Spectrometer (VINS) for the spallation neutron source at the Materials and Life Science Facility (MLF), Japan Proton Accelerator Research Complex (J-PARC). VINS is a direct-geometry Fermi chopper spectrometer designed to provide considerably high neutron flux with moderate energy and Q resolutions. VINS is characterized by its wide energy and Q range (0.5<ΔE<1000 meV and Q< 40 Å-1 at ΔE=1000 meV), enabled by an array of detectors covering large solid angle [-30°<2θ<130° horizontally and -30°<φ<30° vertically (2.8 Sr)]. Monte Carlo ray-tracing simulation estimates the sample position neutron flux as high as roughly 1×106 neutrons cm-2 s-1 for the ΔE/Ei∼5% mode at Ei=10 meV. With these wide E-Q coverage and high neutron flux, VINS will be one of the most efficient and versatile inelastic spectrometers at J-PARC. Target science ranges from conventional solid-state physics, such as highly correlated electron systems, frustrated magnets and relaxors, to rather interdisciplinary areas, exemplified by glasses, quasicrystals, polymers and liquids. A particular focus is placed on extreme sample environments; high magnetic-field and high-pressure environments are planned.

Original languageEnglish
Pages (from-to)143-145
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume600
Issue number1
DOIs
Publication statusPublished - 2009 Feb 21
Externally publishedYes

Keywords

  • Chemistry
  • Condensed matter physics
  • Direct geometry spectrometer
  • Fermi chopper
  • Inelastic neutron scattering
  • Spallation neutron

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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