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Prediction of the radionuclide inventory in the European Spallation Source target using FLUKA

Barkauskas, Vytenis LU and Stenström, Kristina LU (2020) In Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 471. p.24-32
Abstract

The FLUKA code was applied to a simplified model of the tungsten target of the European Spallation Source (ESS) and shown to be suitable for modelling the radionuclide inventory of the ESS target. Two groups of radionuclides were selected based on dose factors and total predicted activities, one immediately after 5 years (designed lifetime of the target) of operation, and the other 10 years after shutdown. The predicted radionuclide production was higher than estimated by other authors for most of the radionuclides considered. The calculated 3H activity was close to the highest values obtained with other spallation models. Particular attention was paid to the evaluation of the production of one of the most toxic... (More)

The FLUKA code was applied to a simplified model of the tungsten target of the European Spallation Source (ESS) and shown to be suitable for modelling the radionuclide inventory of the ESS target. Two groups of radionuclides were selected based on dose factors and total predicted activities, one immediately after 5 years (designed lifetime of the target) of operation, and the other 10 years after shutdown. The predicted radionuclide production was higher than estimated by other authors for most of the radionuclides considered. The calculated 3H activity was close to the highest values obtained with other spallation models. Particular attention was paid to the evaluation of the production of one of the most toxic radionuclides, 148Gd. Differences in the predicted activities of 148Gd were mainly attributed to differences in the spallation and nuclear evaporation models used.

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author
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organization
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type
Contribution to journal
publication status
published
subject
keywords
148Gd, Activation, FLUKA, Spallation source, Target
in
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
volume
471
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:85082630029
ISSN
0168-583X
DOI
10.1016/j.nimb.2020.03.013
language
English
LU publication?
yes
id
03e3df52-c5b9-40bb-8233-c7fdf9ccea14
date added to LUP
2020-04-16 15:38:29
date last changed
2022-04-18 21:40:31
@article{03e3df52-c5b9-40bb-8233-c7fdf9ccea14,
  abstract     = {{<p>The FLUKA code was applied to a simplified model of the tungsten target of the European Spallation Source (ESS) and shown to be suitable for modelling the radionuclide inventory of the ESS target. Two groups of radionuclides were selected based on dose factors and total predicted activities, one immediately after 5 years (designed lifetime of the target) of operation, and the other 10 years after shutdown. The predicted radionuclide production was higher than estimated by other authors for most of the radionuclides considered. The calculated <sup>3</sup>H activity was close to the highest values obtained with other spallation models. Particular attention was paid to the evaluation of the production of one of the most toxic radionuclides, <sup>148</sup>Gd. Differences in the predicted activities of <sup>148</sup>Gd were mainly attributed to differences in the spallation and nuclear evaporation models used.</p>}},
  author       = {{Barkauskas, Vytenis and Stenström, Kristina}},
  issn         = {{0168-583X}},
  keywords     = {{148Gd; Activation; FLUKA; Spallation source; Target}},
  language     = {{eng}},
  month        = {{05}},
  pages        = {{24--32}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms}},
  title        = {{Prediction of the radionuclide inventory in the European Spallation Source target using FLUKA}},
  url          = {{http://dx.doi.org/10.1016/j.nimb.2020.03.013}},
  doi          = {{10.1016/j.nimb.2020.03.013}},
  volume       = {{471}},
  year         = {{2020}},
}