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in creator/contributor: "Passell, L."

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Optimization of the Hyspec Design Using Monte Carlo Simulations.

HYSPEC is a direct geometry spectrometer to be installed at the SNS [1] on beamline 14B where it will view a cryogenic coupled hydrogen moderator, The ''hybrid'' design combines time-of-flight spectroscopy with focusing Bragg optics to provide a high monochromatic flux on small single crystal samples, with a very low background at an extended detector bank. The instrument is optimized for an incident energy range of 3-90meV. It will have a medium energy resolution (2-10%) and will provide a flu… more

Date: April 25, 2005

Creator: Ghosh, V. J.; Hagen, M. E.; Leonhardt, W. J.; Zaliznyak, I.; Shapiro, S. M. & Passell, L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The Methods of Producing and Analyzing Polarized Neutron Beams for Hyspec at the SNS.

The Hybrid Spectrometer (HYSPEC), under construction at the SNS on beam line 14B, is the only inelastic scattering instrument designed to enable polarization of the incident and the scattered neutron beams. A Heusler monochromator will replace the graphite crystal for producing polarized neutrons. In the scattered beam it is planned to use a collimator--multi-channel supermirror bender array to analyze the polarization of the scattered beam over the final energy range from 5-20 meV. Other metho… more

Date: April 25, 2005

Creator: Shapiro, S. M.; Passell, L.; Zaliznyak, A.; Ghosh, V. J.; Leonhardt, W. L. & Hagen, M. E.