Modeling neutron guides using Monte Carlo simulations

D.-Q Wang; J. L. Robertson; M. L. Crow; X.-L Wang; W.-T Lee; C. R. Hubbard

doi:10.1016/S0168-9002(01)00923-8

Author(s)

D.-Q Wang
J. L. Robertson
M. L. Crow
W.-T Lee
C. R. Hubbard

Detail(s)

Original language	English
Pages (from-to)	461-466
Journal / Publication	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	479
Issue number	2-3
Publication status	Published - 1 Mar 2002
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/S0168-9002(01)00923-8 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0036495888&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(0d9b8f4b-d459-4ed1-a5db-3d83f403281c).html

Abstract

Four neutron guide geometries, straight, converging, diverging and curved, were characterized using Monte Carlo ray-tracing simulations. The main areas of interest are the transmission of the guides at various neutron energies and the intrinsic time-of-flight (TOF) peak broadening. Use of a δ-function time pulse from a uniform Lambert neutron source allows one to quantitatively simulate the effect of guides' geometry on the TOF peak broadening. With a converging guide, the intensity and the beam divergence increases while the TOF peak width decreases compared with that of a straight guide. By contrast, use of a diverging guide decreases the intensity and the beam divergence, and broadens the width (in TOF) of the transmitted neutron pulse. © 2002 Elsevier Science B.V. All rights reserved.

Research Area(s)

Acceptance diagram, Monte Carlo simulation, Neutron, Tapered guide, Time-of-flight (TOF) peak width

Citation Format(s)

[ RIS ] [ BibTeX ]

Modeling neutron guides using Monte Carlo simulations. / Wang, D.-Q; Robertson, J. L.; Crow, M. L. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, No. 2-3, 01.03.2002, p. 461-466.

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

Wang, D-Q, Robertson, JL, Crow, ML, Wang, X-L, Lee, W-T & Hubbard, CR 2002, 'Modeling neutron guides using Monte Carlo simulations', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 479, no. 2-3, pp. 461-466. https://doi.org/10.1016/S0168-9002(01)00923-8

Wang, D. -Q., Robertson, J. L., Crow, M. L., Wang, X. -L., Lee, W. -T., & Hubbard, C. R. (2002). Modeling neutron guides using Monte Carlo simulations. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 479(2-3), 461-466. https://doi.org/10.1016/S0168-9002(01)00923-8

Wang D-Q, Robertson JL, Crow ML, Wang X-L, Lee W-T, Hubbard CR. Modeling neutron guides using Monte Carlo simulations. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2002 Mar 1;479(2-3):461-466. doi: 10.1016/S0168-9002(01)00923-8

Wang, D.-Q ; Robertson, J. L. ; Crow, M. L. et al. / Modeling neutron guides using Monte Carlo simulations. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2002 ; Vol. 479, No. 2-3. pp. 461-466.