期刊
JOURNAL OF NEUTRON RESEARCH
卷 22, 期 2-3, 页码 99-107出版社
IOS PRESS
DOI: 10.3233/JNR-200146
关键词
Direct-geometry chopper spectrometer; Fermi chopper; 4SEASONS spectrometer; J-PARC
资金
- [2019I0001]
The elastic energy resolution, integrated intensity, and peak intensity of the direct-geometry neutron chopper spectrometer 4SEASONS at Japan Proton Accelerator Research Complex (J-PARC) were re-investigated. This was done with respect to the incident energy and the rotation speed of the Fermi chopper using incoherent scattering of vanadium and simple analytical formulas. The model calculations reproduced the observed values satisfactorily. The present work should be useful for estimating in instrument performance in experiments.
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