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Neutronic analysis of the bi-spectral moderator such as that proposed for ESS

Magan, M. ; Sordo, F. ; Zanini, Luca LU ; Terron, S. ; Ghiglino, A. ; Martinez, F. ; de Vicente, J. P. ; Vivanco, R. ; Perlado, J. M. and Bermejo, F. J. , et al. (2013) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 729. p.417-425
Abstract
This paper reports on design studies concerning a moderator concept which aims to maximize the time averaged flux. The idea is to provide neutron spectra showing two clear maxima, with peaks at (similar to 1 angstrom) and (similar to 2.5 angstrom) arising from leakage from both cryogenic and thermal moderators. Such a concept known as a bi-spectral moderator (Mezei, 2006 [1]) while proven on a reactor source has only been examined for the ESS 2003 proposal. Bilges et al. (2003 [2]), which featured a different design than the current ESS. This paper thus reports on a baseline design for such a moderator concept and shows that it can provide substantial gains in count rates for those applications not requiring high resolution in... (More)
This paper reports on design studies concerning a moderator concept which aims to maximize the time averaged flux. The idea is to provide neutron spectra showing two clear maxima, with peaks at (similar to 1 angstrom) and (similar to 2.5 angstrom) arising from leakage from both cryogenic and thermal moderators. Such a concept known as a bi-spectral moderator (Mezei, 2006 [1]) while proven on a reactor source has only been examined for the ESS 2003 proposal. Bilges et al. (2003 [2]), which featured a different design than the current ESS. This paper thus reports on a baseline design for such a moderator concept and shows that it can provide substantial gains in count rates for those applications not requiring high resolution in Lime-of-flight. (C) 2013 Elsevier BM. All rights reserved (Less)
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publication status
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subject
keywords
Neutron production, ESS, Moderator
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
729
pages
417 - 425
publisher
Elsevier
external identifiers
  • wos:000325753500058
  • scopus:84882790845
ISSN
0167-5087
DOI
10.1016/j.nima.2013.07.011
language
English
LU publication?
yes
id
7621d22b-8857-44f5-9ed6-a4760a04ec7e (old id 4157901)
date added to LUP
2016-04-01 13:50:27
date last changed
2019-07-30 02:31:57
@article{7621d22b-8857-44f5-9ed6-a4760a04ec7e,
  abstract     = {This paper reports on design studies concerning a moderator concept which aims to maximize the time averaged flux. The idea is to provide neutron spectra showing two clear maxima, with peaks at (similar to 1 angstrom) and (similar to 2.5 angstrom) arising from leakage from both cryogenic and thermal moderators. Such a concept known as a bi-spectral moderator (Mezei, 2006 [1]) while proven on a reactor source has only been examined for the ESS 2003 proposal. Bilges et al. (2003 [2]), which featured a different design than the current ESS. This paper thus reports on a baseline design for such a moderator concept and shows that it can provide substantial gains in count rates for those applications not requiring high resolution in Lime-of-flight. (C) 2013 Elsevier BM. All rights reserved},
  author       = {Magan, M. and Sordo, F. and Zanini, Luca and Terron, S. and Ghiglino, A. and Martinez, F. and de Vicente, J. P. and Vivanco, R. and Perlado, J. M. and Bermejo, F. J. and Mezei, Ferenc and Muhrer, G.},
  issn         = {0167-5087},
  language     = {eng},
  pages        = {417--425},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Neutronic analysis of the bi-spectral moderator such as that proposed for ESS},
  url          = {http://dx.doi.org/10.1016/j.nima.2013.07.011},
  doi          = {10.1016/j.nima.2013.07.011},
  volume       = {729},
  year         = {2013},
}