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.
- Hydrogenous materials
- Inelasticity effect
- Neutron total scattering
- Third-generation pulsed neutron source
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering