Journal of Applied Crystallography

Volume 40, Part 5 (October 2007)


research papers



J. Appl. Cryst. (2007). 40, 945-949    [ doi:10.1107/S0021889807034863 ]

A double-supermirror monochromator for neutron instrumentation at Laboratoire Léon Brillouin

S. Désert, V. Thévenot, A. Gabriel, P. Permingeat, J. Oberdisse and A. Brûlet

Abstract: The design and characteristics of a double-supermirror monochromator for neutron instrumentation at the Laboratoire Léon Brillouin are described. The aim of this monochromator is to reduce the intense [gamma] radiation produced by conventional velocity selectors and to avoid a direct view of the guide while keeping a comparable neutron transmission (70%). The monochromator offers a continuous choice of wavelength selection in the range 0.5-2 nm.

Keywords: monochromator; beam optics; neutron instrumentation.

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