Physical design of multipurpose physics neutron diffractometer for the CSNS

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Juping Xu
  • Longwei Mei
  • Wen Yin
  • Weiliang Cai
  • Zhiduo Li
  • Tao Bo
  • Huaican Chen
  • Baotian Wang
  • Yuanbo Chen

Detail(s)

Original languageEnglish
Pages (from-to)161-168
Journal / PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume927
Online published14 Feb 2019
Publication statusPublished - 21 May 2019

Abstract

The Multipurpose Physics neutron diffractometer (MP) will be built at the China Spallation Neutron Source (CSNS) in the coming years. It is a time of flight diffractometer dedicated to the study of complex crystalline materials through the total scattering or pair distribution function (PDF) technique. The MP diffractometer will be able to determine the PDF from the atomic to the nanometer scale. We present a validation of the main physical parameters of the MP diffractometer through Monte Carlo simulation. In particular the moderator choice, guide system and placement of the chopper system is investigated. The best momentum transfer resolution δQ/Q is reached in backscattering and is expected to be in the order of 0.2 %, the neutron flux at the sample is of the order of 107 n/s/cm2 and the momentum transfer range in the order of 0.08–100 Å−1.

Research Area(s)

  • McStas, Neutron diffraction, Neutron optics, Total-scattering instrumentation

Citation Format(s)

Physical design of multipurpose physics neutron diffractometer for the CSNS. / Xu, Juping; Mei, Longwei; Yin, Wen; Wang, Xunli; Cai, Weiliang; Li, Zhiduo; Bo, Tao; Chen, Huaican; Wang, Baotian; Chen, Yuanbo.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 927, 21.05.2019, p. 161-168.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review