Cheng, P., Zhang, Hongxia, Bao, W., Schneidewind, A., Link, P., Gruenwald, A. T. D., Georgii, R., Hao, L. J. and Liu, Y. T. (2016). Design of the cold neutron triple-axis spectrometer at the China Advanced Research Reactor. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 821. S. 17 - 23. AMSTERDAM: ELSEVIER. ISSN 1872-9576

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Abstract

The design of the first cold neutron triple-axis spectrometer at the China Advanced Research Reactor is presented. Based on the Monte Carlo simulations using neutron ray-tracing program McStas, the parameters of major neutron optics in this instrument are optimized. The neutron flux at sample position is estimated to be 5.6 x 10(7) n/cm(2)/s at neutron incident energy E-i=5 meV when the reactor operates normally at the designed 60 MW power. The performances of several neutron supermirror polarizing devices are compared and their critical parameters are optimized for this spectrometer. The polarization analysis will be realized with a flexible switch from the unpolarized experimental mode. (C) 2016 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Cheng, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, HongxiaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bao, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schneidewind, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Link, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gruenwald, A. T. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Georgii, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hao, L. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, Y. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-272335
DOI: 10.1016/j.nima.2016.03.045
Journal or Publication Title: Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Volume: 821
Page Range: S. 17 - 23
Date: 2016
Publisher: ELSEVIER
Place of Publication: AMSTERDAM
ISSN: 1872-9576
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SCATTERING INSTRUMENT; OPTIMIZATION; UPGRADEMultiple languages
Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & FieldsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27233

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