Focusing neutron guides for VULCAN-Design aspects, estimated performance, and detector deployment (original) (raw)

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 2009

Abstract

The neutron optics design and performance for VULCAN—the SNS engineering diffractometer—is presented. A gradually tapered focusing neutron guide is used to deliver desired beam divergence at sample position. Selection of instrument resolution is achieved with an interchangeable guide–collimator system in the last 3m of the neutron guide system. The effect of focusing on instrument resolution was evaluated and the strategy for detector deployment is discussed.

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