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Measurement of Volatile Radionuclides Production and Release Yields followed by a Post-Irradiation Analysis of a Pb/Bi Filled Ta Target at ISOLDE

Zanini, Luca LU ; Koester, U.; David, J. C.; Tall, Y.; Andersson, M.; Berg, K.; Cormon, S.; Fallot, M.; Foucher, Y. and Franberg, H., et al. (2014) In Nuclear Data Sheets 119. p.292-295
Abstract
A crucial requirement in the development of liquid-metal spallation neutron target is knowledge of the composition and amount of volatile radionuclides that are released from the target during operation. It is also important to know the total amount produced, which could be released if there was an accident. One type is the lead-bismuth eutectic (LBE) target where different radionuclides can be produced following interaction with a high-energy proton beam, notably noble gases (Ar, Kr, Xe isotopes) and other relative volatile isotopes such as Hg and At. The results of an irradiation experiment performed at ISOLDE on a LBE target are compared with predictions from the MCNPX code using the latest developments on the Liege Intranuclear Cascade... (More)
A crucial requirement in the development of liquid-metal spallation neutron target is knowledge of the composition and amount of volatile radionuclides that are released from the target during operation. It is also important to know the total amount produced, which could be released if there was an accident. One type is the lead-bismuth eutectic (LBE) target where different radionuclides can be produced following interaction with a high-energy proton beam, notably noble gases (Ar, Kr, Xe isotopes) and other relative volatile isotopes such as Hg and At. The results of an irradiation experiment performed at ISOLDE on a LBE target are compared with predictions from the MCNPX code using the latest developments on the Liege Intranuclear Cascade model (INCL4.6) and the CEM03 model. The calculations are able to reproduce the mass distribution of the radioisotopes produced, including the At production, where there is a significant contribution from secondary reactions. Subsequently, a post-irradiation examination of the irradiated target was performed. Investigations of both the tantalum target structure, in particular the beam window, and the lead-bismuth eutectic were performed using several experimental techniques. No sign of severe irradiation damage, previously observed in other ISOLDE targets, was found. (Less)
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Nuclear Data Sheets
volume
119
pages
292 - 295
publisher
Elsevier
external identifiers
  • wos:000347706200196
ISSN
0090-3752
DOI
10.1016/j.nds.2014.08.080
language
English
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yes
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b242569a-4035-4a76-91a3-4143f341c9df (old id 5204305)
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2015-03-25 14:05:16
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2016-04-15 15:30:47
@article{b242569a-4035-4a76-91a3-4143f341c9df,
  abstract     = {A crucial requirement in the development of liquid-metal spallation neutron target is knowledge of the composition and amount of volatile radionuclides that are released from the target during operation. It is also important to know the total amount produced, which could be released if there was an accident. One type is the lead-bismuth eutectic (LBE) target where different radionuclides can be produced following interaction with a high-energy proton beam, notably noble gases (Ar, Kr, Xe isotopes) and other relative volatile isotopes such as Hg and At. The results of an irradiation experiment performed at ISOLDE on a LBE target are compared with predictions from the MCNPX code using the latest developments on the Liege Intranuclear Cascade model (INCL4.6) and the CEM03 model. The calculations are able to reproduce the mass distribution of the radioisotopes produced, including the At production, where there is a significant contribution from secondary reactions. Subsequently, a post-irradiation examination of the irradiated target was performed. Investigations of both the tantalum target structure, in particular the beam window, and the lead-bismuth eutectic were performed using several experimental techniques. No sign of severe irradiation damage, previously observed in other ISOLDE targets, was found.},
  author       = {Zanini, Luca and Koester, U. and David, J. C. and Tall, Y. and Andersson, M. and Berg, K. and Cormon, S. and Fallot, M. and Foucher, Y. and Franberg, H. and Groeschel, F. and Guertin, A. and Kirchner, T. and Leray, S. and Manfrin, E. and Noah, Etam and Ravn, H. and Stora, T. and Thiolliere, N. and Wohlmuther, M.},
  issn         = {0090-3752},
  language     = {eng},
  pages        = {292--295},
  publisher    = {Elsevier},
  series       = {Nuclear Data Sheets},
  title        = {Measurement of Volatile Radionuclides Production and Release Yields followed by a Post-Irradiation Analysis of a Pb/Bi Filled Ta Target at ISOLDE},
  url          = {http://dx.doi.org/10.1016/j.nds.2014.08.080},
  volume       = {119},
  year         = {2014},
}