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Title: Simulation-guided optimization of small-angle analyzer geometry in the neutron backscattering spectrometer SPHERES

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4831815· OSTI ID:22220331
;  [1]
  1. Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstraße 1, 85747 Garching (Germany)

The resolution of neutron backscattering spectrometers deteriorates at small scattering angles where analyzers deviate from exact backscattering. By reducing the azimuth angle range of the analyzers, the resolution can be improved with little loss of peak intensity. Measurements at the spectrometer SPHERES are in excellent agreement with simulations, which proves the dominance of geometric effects.

OSTI ID:
22220331
Journal Information:
Review of Scientific Instruments, Vol. 84, Issue 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
Country of Publication:
United States
Language:
English