期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2011.11.090
关键词
Quasielastic scattering; Backscattering
类别
资金
- French Research Agency ANR
We report on the realisation of a new type of inelastic fixed window scans (IFWS) in neutron backscattering spectroscopy using the flexibility of linear motor Doppler drives to choose the velocity profile. We discuss more generally the information content obtained from such scans and point out how scans at a few different energy offsets can lead to a large improvement in statistics compared to full quasielastic spectroscopy. We discuss both the technical and statistical aspects and illustrate the method assuming a simple model for the scattering law and show some first experimental results. (C) 2011 Elsevier B.V. All rights reserved.
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