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논문 기본 정보

자료유형
학술저널
저자정보
Abdesslam Lamrabet (a Department of Physics, Faculty of Sciences Dhar El Mahraz, University Sidi Mohamed Ben Abdellah) Abdelmajid Maghnouj (a Department of Physics, Faculty of Sciences Dhar El Mahraz, University Sidi Mohamed Ben Abdellah) Jaouad Tajmouati (a Department of Physics, Faculty of Sciences Dhar El Mahraz, University Sidi Mohamed Ben Abdellah) Mohamed Bencheikh (Department of Physics, Faculty of Sciences and Technology Mohammedia, Hassan II University of Casab)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제10호
발행연도
2021.10
수록면
3,164 - 3,170 (7page)
DOI
https://doi.org/10.1016/j.net.2021.05.002

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The increasing interest that GEANT4 is gaining nowadays, because of its special capabilities, prompted usto address its reliability in neutronic calculation for the realistic and complex spallation target MEGAPIEof the Paul Scherrer Institute of Switzerland. In this paper we have specifically addressed the neutroniccharacterization of the active zone of this target. Three physical quantities are evaluated: neutron fluxspectra and total neutron fluxes on target's z-axis, and the neutron yield as a function of the target'saltitude and radius. Comparison of the obtained results with those of the MCNPX reference code andsome experimental measurements have confirmed the impact of the geometrical and proton beammodels on the neutron fluxes. It has also allowed to reveal the intrinsic influence of the code type. Theresulting differences reach a factor of ~2 for the beam model and 4e18% for the other parameterscumulated. The analysis of the neutron yield has led us to conclude that: 1) Increasing the productivity ofthe MEGAPIE target cannot be achieved simply by increasing the thickness of the target, if the irradiationparameters are not modified. 2) The size of the spallation area needs to be redefined more precisely

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