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Numerical simulation study of the performance of a small neutron three axis spectrometer

Willendrup, Peter LU and Cussen, L. D. LU (2011) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 637(1). p.109-118
Abstract
This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals.... (More)
This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Three-axis spectrometer, TAS, Micro, Neutron, McStas, Design study
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
637
issue
1
pages
109 - 118
publisher
Elsevier
external identifiers
  • wos:000289608000013
  • scopus:79952988715
ISSN
0167-5087
DOI
10.1016/j.nima.2011.01.118
language
English
LU publication?
yes
id
edcc900e-e013-413d-bae1-b0c4b8bfe7fc (old id 1965494)
date added to LUP
2016-04-01 14:35:34
date last changed
2022-01-28 01:25:00
@article{edcc900e-e013-413d-bae1-b0c4b8bfe7fc,
  abstract     = {{This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals. (C) 2011 Elsevier B.V. All rights reserved.}},
  author       = {{Willendrup, Peter and Cussen, L. D.}},
  issn         = {{0167-5087}},
  keywords     = {{Three-axis spectrometer; TAS; Micro; Neutron; McStas; Design study}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{109--118}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}},
  title        = {{Numerical simulation study of the performance of a small neutron three axis spectrometer}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2011.01.118}},
  doi          = {{10.1016/j.nima.2011.01.118}},
  volume       = {{637}},
  year         = {{2011}},
}