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A Monte Carlo Simulation of Neutron Instrument Resolution Functions

Vickery, Anette ; Udby, Linda ; Violini, Nicolo ; Voigt, Joerg ; Deen, Pascale LU and Lefmann, Kim (2013) In Journal of the Physical Society of Japan 82. p.037-037
Abstract
In this paper we demonstrate that the Monte Carlo simulation package McStas is a useful tool, not only for instrument design, but also for resolution function calculation. It has been possible to determine analytically the 4 dimensional resolution function of both a direct geometry time of flight neutron spectrometer and a triple axis spectrometer. The obtained resolution functions are directly comparable to and in agreement with the Monte Carlo simulated results. These results are a step towards incorporating a 4 dimensional resolution function into data analysis. For each instrument we show an example of the resolution function calculated at a particluar point in (Q, omega) space.
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
resolution function, triple axis spectrometer, direct geometry chopper, spectrometer, Monte Carlo simulation, Cooper-Nathans, Popovici
in
Journal of the Physical Society of Japan
volume
82
pages
037 - 037
publisher
Physical Society of Japan
external identifiers
  • wos:000341649900037
ISSN
1347-4073
DOI
10.7566/JPSJS.82SA.SA037
language
English
LU publication?
yes
id
6d9e1115-41c8-4f17-9582-174320e939f0 (old id 4717149)
date added to LUP
2016-04-01 11:15:20
date last changed
2018-11-21 19:57:19
@article{6d9e1115-41c8-4f17-9582-174320e939f0,
  abstract     = {In this paper we demonstrate that the Monte Carlo simulation package McStas is a useful tool, not only for instrument design, but also for resolution function calculation. It has been possible to determine analytically the 4 dimensional resolution function of both a direct geometry time of flight neutron spectrometer and a triple axis spectrometer. The obtained resolution functions are directly comparable to and in agreement with the Monte Carlo simulated results. These results are a step towards incorporating a 4 dimensional resolution function into data analysis. For each instrument we show an example of the resolution function calculated at a particluar point in (Q, omega) space.},
  author       = {Vickery, Anette and Udby, Linda and Violini, Nicolo and Voigt, Joerg and Deen, Pascale and Lefmann, Kim},
  issn         = {1347-4073},
  language     = {eng},
  pages        = {037--037},
  publisher    = {Physical Society of Japan},
  series       = {Journal of the Physical Society of Japan},
  title        = {A Monte Carlo Simulation of Neutron Instrument Resolution Functions},
  url          = {http://dx.doi.org/10.7566/JPSJS.82SA.SA037},
  doi          = {10.7566/JPSJS.82SA.SA037},
  volume       = {82},
  year         = {2013},
}