June 2009

Journal

Focusing neutron guides for VULCAN ‘ Design Aspects, Estimated Performance, and Detector Deployment

By:
Wang, Xun-Li ; Stoica, A.
Journal Name:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Page Number:
309-312
Volume:
600
Issue Number:
1
Publication Date:
June 3, 2009
View DOI Listing:
https://doi.org/10.1016/j.nima.2008.11.050

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 3-m of the neutron guide system. The effect of focusing on instrument resolution was evaluated and the strategy for detector deployment is discussed.