The Fermi chopper spectrometer 4SEASONS at J-PARC

Ryoichi Kajimoto, Mitsutaka Nakamura, Yasuhiro Inamura, Fumio Mizuno, Kenji Nakajima, Seiko Ohira-Kawamura, Tetsuya Yokoo, Takeshi Nakatani, Ryuji Maruyama, Kazuhiko Soyama, Kaoru Shibata, Kentaro Suzuya, Setsuo Sato, Kazuya Aizawa, Masatoshi Arai, Shuichi Wakimoto, Motoyuki Ishikado, Shin Ichi Shamoto, Masaki Fujita, Haruhiro HirakaKenji Ohoyama, Kazuyoshi Yamada, Chul Ho Lee

研究成果: Article同行評審

79 引文 斯高帕斯(Scopus)

摘要

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.

原文English
文章編號SB025
期刊Journal of the Physical Society of Japan
80
發行號SUPPL. B
DOIs
出版狀態Published - 2011 12月

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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