Neutronic design of MYRRHA reactor hall shielding

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The lateral shielding of a 600 MeV proton linear accelerator beam line in the MYRRHA reactor hall has been assessed using neutronic calculations by the MCNPX code complemented with analytical predictions. Continuous beam losses were considered to define the required shielding thickness that meets the requirements for the dose rate limits. Required shielding thicknesses were investigated from the viewpoint of accidental full beam loss as well as beam loss on collimator. The results confirm that the required shielding thicknesses are highly sensitive to the spatial shape of the beam and strongly divergent beam losses. Therefore shielding barrier should be designed according to the more conservative assumptions.


Original languageEnglish
Article number03007
Pages (from-to)1-6
Number of pages6
JournalEPJ Web of Conferences
Publication statusPublished - 5 May 2017
EventICRS-13-RPSD2016 - 13th international conference on radiation shielding: 19th topical meeting of the radiation protection & shielding division of the american nuclear society - Paris, France
Duration: 3 Oct 20166 Oct 2016


  • MYRRHA, Shielding

ID: 6901234