High-intensity and versatile chopper spectrometer 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

doi:10.1080/10238160903361082

High-intensity and versatile chopper spectrometer 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

Research output: Contribution to journal › Article › peer-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, Japan Proton Accelerator Research Complex. This is a directgeometry Fermi chopper spectrometer, aimed at realizing a very high neutron flux with reasonable energy and Q resolutions. A wide energy-transfer range of 0.5 < E < 1000meV will be covered with two energy-resolution modes, δE/E_i 5 and 2.5%. Q range will also be considerably large as up to 40Å^-1 at E_i = 1000 meV, enabled by an array of detectors covering -30 < 2θ < 130° (2.8 Sr). Preliminary Monte Carlo simulation predicts the maximum flux of 10⁶ neutrons/cm²/s at the sample position for E_i = 10meV (assuming that the neutron source is running at 1 MW). With the remarkably high neutron flux, VINS will be a unique tool for various types of condensed matter research, in particular, those which have never been explored by inelastic neutron scattering due to sample size restriction.

Original language	English
Pages (from-to)	113-119
Number of pages	7
Journal	Journal of Neutron Research
Volume	16
Issue number	3-4
DOIs	https://doi.org/10.1080/10238160903361082
Publication status	Published - 2008 Jan 1
Externally published	Yes

Keywords

Chopper spectrometer
Direct geometry
Neutron scattering

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering

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10.1080/10238160903361082

Cite this

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title = "High-intensity and versatile chopper spectrometer project for J-PARC",

abstract = "We have proposed a versatile inelastic neutron spectrometer (VINS) for the spallation neutron source at the Materials and Life Science Facility, Japan Proton Accelerator Research Complex. This is a directgeometry Fermi chopper spectrometer, aimed at realizing a very high neutron flux with reasonable energy and Q resolutions. A wide energy-transfer range of 0.5 < E < 1000meV will be covered with two energy-resolution modes, δE/Ei 5 and 2.5%. Q range will also be considerably large as up to 40{\AA}-1 at Ei = 1000 meV, enabled by an array of detectors covering -30 < 2θ < 130° (2.8 Sr). Preliminary Monte Carlo simulation predicts the maximum flux of 106 neutrons/cm2/s at the sample position for Ei = 10meV (assuming that the neutron source is running at 1 MW). With the remarkably high neutron flux, VINS will be a unique tool for various types of condensed matter research, in particular, those which have never been explored by inelastic neutron scattering due to sample size restriction.",

keywords = "Chopper spectrometer, Direct geometry, Neutron scattering",

author = "Sato, {T. J.} and O. Yamamuro and K. Hirota and M. Shibayama and H. Yoshizawa and S. Itoh and S. Watanabe and T. Asami and K. Kindo and Y. Uwatoko and T. Kanaya",

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doi = "10.1080/10238160903361082",

language = "English",

volume = "16",

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TY - JOUR

T1 - High-intensity and versatile chopper spectrometer project for J-PARC

AU - Sato, T. J.

AU - Yamamuro, O.

AU - Hirota, K.

AU - Shibayama, M.

AU - Yoshizawa, H.

AU - Itoh, S.

AU - Watanabe, S.

AU - Asami, T.

AU - Kindo, K.

AU - Uwatoko, Y.

AU - Kanaya, T.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - We have proposed a versatile inelastic neutron spectrometer (VINS) for the spallation neutron source at the Materials and Life Science Facility, Japan Proton Accelerator Research Complex. This is a directgeometry Fermi chopper spectrometer, aimed at realizing a very high neutron flux with reasonable energy and Q resolutions. A wide energy-transfer range of 0.5 < E < 1000meV will be covered with two energy-resolution modes, δE/Ei 5 and 2.5%. Q range will also be considerably large as up to 40Å-1 at Ei = 1000 meV, enabled by an array of detectors covering -30 < 2θ < 130° (2.8 Sr). Preliminary Monte Carlo simulation predicts the maximum flux of 106 neutrons/cm2/s at the sample position for Ei = 10meV (assuming that the neutron source is running at 1 MW). With the remarkably high neutron flux, VINS will be a unique tool for various types of condensed matter research, in particular, those which have never been explored by inelastic neutron scattering due to sample size restriction.

AB - We have proposed a versatile inelastic neutron spectrometer (VINS) for the spallation neutron source at the Materials and Life Science Facility, Japan Proton Accelerator Research Complex. This is a directgeometry Fermi chopper spectrometer, aimed at realizing a very high neutron flux with reasonable energy and Q resolutions. A wide energy-transfer range of 0.5 < E < 1000meV will be covered with two energy-resolution modes, δE/Ei 5 and 2.5%. Q range will also be considerably large as up to 40Å-1 at Ei = 1000 meV, enabled by an array of detectors covering -30 < 2θ < 130° (2.8 Sr). Preliminary Monte Carlo simulation predicts the maximum flux of 106 neutrons/cm2/s at the sample position for Ei = 10meV (assuming that the neutron source is running at 1 MW). With the remarkably high neutron flux, VINS will be a unique tool for various types of condensed matter research, in particular, those which have never been explored by inelastic neutron scattering due to sample size restriction.

KW - Chopper spectrometer

KW - Direct geometry

KW - Neutron scattering

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High-intensity and versatile chopper spectrometer project for J-PARC

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Keywords

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