title: Simulation-guided optimization of small-angle analyzer geometry in the neutron backscattering spectrometer SPHERES.
abstract: 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.
authors.affiliation: Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstraße 1, 85747 Garching, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Wuttke
authors.forename: Michaela
authors.initials: M
authors.lastname: Zamponi