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Proceedings Paper

Beam center shifts caused by vertical focusing
Author(s): Leo D. Cussen
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Paper Abstract

Vertically "focussed" monochromators are widely used on neutron scattering instruments. As scientists search to improve instrument performance, there has been a trend to increasing the vertical height of monochromators. Vertical focussing shifts the centre of intensity of the beam horizontally in a systematic way. With large monochromators the shift becomes large. While the effect is simple to explain, it is less widely appreciated than it should be. This work presents equations describing the shifts.

Paper Details

Date Published: 18 November 2002
PDF: 8 pages
Proc. SPIE 4785, Advances in Neutron Scattering Instrumentation, (18 November 2002); doi: 10.1117/12.454820
Show Author Affiliations
Leo D. Cussen, Australian Nuclear Science and Technology Organisation (Australia)

Published in SPIE Proceedings Vol. 4785:
Advances in Neutron Scattering Instrumentation
Ian S. Anderson; Bruno Guérard, Editor(s)

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