Neutronic design of MYRRHA reactor hall shielding
SCK•CEN, Institute for Advanced Nuclear Systems, Boeretang 200, B-2400 Mol, Belgium
* Corresponding author: firstname.lastname@example.org
Published online: 25 September 2017
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.
© The Authors, published by EDP Sciences, 2017
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