Physical design of multipurpose physics neutron diffractometer for the CSNS

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

doi:10.1016/j.nima.2019.02.011

Author(s)

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

Detail(s)

Original language	English
Pages (from-to)	161-168
Journal / Publication	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	927
Online published	14 Feb 2019
Publication status	Published - 21 May 2019

Link(s)

DOI	DOI https://doi.org/10.1016/j.nima.2019.02.011 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85061934946&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(eaf33a96-ed5c-4e3d-beab-9853e8b942ea).html

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)

[ RIS ] [ BibTeX ]

Physical design of multipurpose physics neutron diffractometer for the CSNS. / Xu, Juping; Mei, Longwei; Yin, Wen et al.

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 journal › peer-review

Xu, J, Mei, L, Yin, W, Wang, X, Cai, W, Li, Z, Bo, T, Chen, H, Wang, B & Chen, Y 2019, 'Physical design of multipurpose physics neutron diffractometer for the CSNS', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 927, pp. 161-168. https://doi.org/10.1016/j.nima.2019.02.011

Xu, J., Mei, L., Yin, W., Wang, X., Cai, W., Li, Z., Bo, T., Chen, H., Wang, B., & Chen, Y. (2019). Physical design of multipurpose physics neutron diffractometer for the CSNS. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 927, 161-168. https://doi.org/10.1016/j.nima.2019.02.011

Xu J, Mei L, Yin W, Wang X, Cai W, Li Z et al. Physical design of multipurpose physics neutron diffractometer for the CSNS. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2019 May 21;927:161-168. Epub 2019 Feb 14. doi: 10.1016/j.nima.2019.02.011

Xu, Juping ; Mei, Longwei ; Yin, Wen et al. / Physical design of multipurpose physics neutron diffractometer for the CSNS. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2019 ; Vol. 927. pp. 161-168.