The Design of the Neutron Total Scattering Spectrometer for Hydrogenous Materials at J-PARC-JSNS

Article type: Research Article

Authors: Suzuya, Kentaro | Kameda, Yasuo | Otomo, Toshiya | Yoshida, Koji | Itoh, Keiji | Fukunaga, Toshiharu | Misawa, Masakatsu

Affiliations: Japan Atomic Energy Research Institute (JAERI), Tokai, Ibaraki 319-1195, Japan | Yamagata University, Yamagata, Yamagata 990-8560, Japan | High-Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan | Fukuoka University, Fukuoka, Fukuoka 814-0180, Japan | Kyoto University, Kumatori, Osaka 590-0494, Japan | Niigata University, Niigata, Niigata 950-2181, Japan

Note: [] Corresponding author. E-mail: suzuya@popsvr.tokai.jaeri.go.jp

Abstract: The design, performance, philosophy, lessons learned and advantages of the neutron total scattering spectrometer for hydrogenous materials, FAST, under consideration for the J-PARC-JSNS, are described. In particular, novel instrumentation concept such as the small fractional scattered neutron flight path, γ = L2/(L1 + L2), where L1 is the incident flight path, moderator to sample, L2 is the scattered neutron flight path from sample to detector, is presented and their expected performance at the JSNS is considered.

Keywords: Neutron total scattering, Hydrogenous materials, Inelasticity effect, Third-generation pulsed neutron source

DOI: 10.1080/10238160412331299898

Journal: Journal of Neutron Research, vol. 13, no. 1-3, pp. 123-128, 2005