Backscattering Spectrometers at the ESS

Author: Andersen* K.H.

Source: The Journal of Neutron Research, Volume 10, Numbers 3-4, 1 January 2002 , pp. 179-186(8)

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Abstract:

Calculations are presented for backscattering spectrometers under consideration for the ESS. In particular, novel instrumentation concepts such as pulse-shaping choppers and ballistic guides are considered. Instruments covering energy resolutions from 1 to 10

eV are presented and their expected performance at the ESS is compared to existing instruments. For

eV energy resolutions, the combination of a coupled moderator and a pulse-shaping chopper is shown to perform well compared to the conventional poisoned-moderator instrument.

Keywords: Neutron scattering instrumentation; Time-of-flight; Backscattering; Ballistic guides; Pulse-shaping

Document Type: Research article

DOI: http://dx.doi.org/10.1080/1023816021000020635

Publication date: 2002-01-01