TY - JOUR
T1 - The Fermi chopper spectrometer 4SEASONS at J-PARC
AU - Kajimoto, Ryoichi
AU - Nakamura, Mitsutaka
AU - Inamura, Yasuhiro
AU - Mizuno, Fumio
AU - Nakajima, Kenji
AU - Ohira-Kawamura, Seiko
AU - Yokoo, Tetsuya
AU - Nakatani, Takeshi
AU - Maruyama, Ryuji
AU - Soyama, Kazuhiko
AU - Shibata, Kaoru
AU - Suzuya, Kentaro
AU - Sato, Setsuo
AU - Aizawa, Kazuya
AU - Arai, Masatoshi
AU - Wakimoto, Shuichi
AU - Ishikado, Motoyuki
AU - Shamoto, Shin Ichi
AU - Fujita, Masaki
AU - Hiraka, Haruhiro
AU - Ohoyama, Kenji
AU - Yamada, Kazuyoshi
AU - Lee, Chul Ho
PY - 2011/12
Y1 - 2011/12
N2 - 4SEASONS is a Fermi chopper spectrometer in operation at the Materials and Life Science Experimental Facility (MLF) in the Japan Proton Accelerator Research Complex (J-PARC). 4SEASONS is expected to facilitate highefficiency measurements of weak inelastic signals on novel spin and lattice dynamics using thermal neutrons. The spectrometer is equipped with a coupled moderator and sophisticated components such as an elliptical converging neutron guide with high-critical-angle supermirrors, long (2.5 m) position-sensitive detectors, and a Fermi chopper appropriate for multiple-incident-energy (multi-E i) measurements by the repetition-rate multiplication technique. Herein, we discuss in detail the design and performance of the spectrometer, and present some examples of the measurements obtained using this spectrometer.
AB - 4SEASONS is a Fermi chopper spectrometer in operation at the Materials and Life Science Experimental Facility (MLF) in the Japan Proton Accelerator Research Complex (J-PARC). 4SEASONS is expected to facilitate highefficiency measurements of weak inelastic signals on novel spin and lattice dynamics using thermal neutrons. The spectrometer is equipped with a coupled moderator and sophisticated components such as an elliptical converging neutron guide with high-critical-angle supermirrors, long (2.5 m) position-sensitive detectors, and a Fermi chopper appropriate for multiple-incident-energy (multi-E i) measurements by the repetition-rate multiplication technique. Herein, we discuss in detail the design and performance of the spectrometer, and present some examples of the measurements obtained using this spectrometer.
KW - Chopper spectrometer
KW - J-PARC
KW - Neutron-scattering instrumentation
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U2 - 10.1143/JPSJS.80SB.SB025
DO - 10.1143/JPSJS.80SB.SB025
M3 - Article
AN - SCOPUS:84855338235
VL - 80
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. B
M1 - SB025
ER -