A novel time-spatial-focusing momentum-correction analyzer for the near-backscattering spectrometer DIANA at J-PARC

Nobuaki Takahashi, Kaoru Shibata, Taku J. Sato, Masatoshi Arai, Ferenc Mezei

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have developed a novel configuration concept of crystal chips for time-of-flight (TOF) crystal-analyzer neutron inelastic scattering spectrometers, which simultaneously achieve time-focusing, spatial-focusing and momentum-correcting abilities. This concept will be adopted for the planned TOF near-backscattering spectrometer, DIANA which has been proposed for construction at the Japan Proton Accelerator Research Complex (J-PARC). We will first discuss the new analyzer layout method satisfying both time- and spatial-focusing and momentum-correction concepts and then the focusing performances as evaluated by Monte-Carlo simulations and compared to the generally used energy-focusing analyzer configuration.

Original languageEnglish
Pages (from-to)350-362
Number of pages13
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume587
Issue number2-3
DOIs
Publication statusPublished - 2008 Mar 21
Externally publishedYes

Keywords

  • Analyzer
  • Backscattering
  • Inelastic neutron scattering
  • Momentum correction
  • Spatial focusing
  • Time focusing

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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