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Reflector materials selection for core design of modular gas-cooled fast reactor using OpenMC code
Raflis H.a,b, Muhammad I.a, Su’ud Z.a, Waris A.a, Irwanto D.a
a Nuclear Physics and Biophysics Research Division, Physics Department, Faculty of Mathematics and Natural Science, Bandung Institute of Technology, Bandung, Indonesia
b Regulatory Assessment Center of Nuclear Installation and Materials, Nuclear Energy Regulatory Agency (BAPETEN), Jakarta Pusat, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 John Wiley & Sons LtdThis paper discusses the selection of reflector materials for the core design of modular gas-cooled fast reactor (GFR). Ideally, the reflector materials can be recycled, compatible with helium as the primary coolant, and resistant to high working temperature in the modular GFR. The modular GFR is a reactor design concept that maintains the criticality to achieve a longer operation time. However, maintaining the neutron population in the fast reactor core is still a challenge due to the high neutron leakage. In this research, the main objective is selecting potential reflectors materials for a modular GFR using open-source Monte Carlo, OpenMC code. The OpenMC code applied the Monte Carlo method that provides high fidelity three-dimensional (3D) geometry modeling, implementing continuous energy cross-sections, and enabling to use of the nuclear data of Evaluated Nuclear Data File (ENDF/B-VII.b5). The various candidate reflector materials, such as pure nickel, pure magnesium, pure lead, PbO, Ba2Pb, BeO, SiC, and Zr3Si2, are calculated from the neutron physics phenomenon to determine a good neutron reflector. The considered parameters of neutron physics included the multiplication factor profile, neutron energy distribution, flux and fission rate distribution, neutron leakage, core lifetime, mass evolution of fissile and fertile material, and thickness of reflector. The most crucial parameter of GFR core design is determined based on the conditions at the beginning of life (BOL) and the end of life (EOL). Finally, we concluded that the BeO material and silicon-based materials are good reflector candidates for the core design of modular GFR.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Evaluated nuclear data file,Gas-cooled fast reactors,Multiplication factor,Neutron energy distributions,Potential reflectors,Silicon-based materials,Three-dimensional (3D) geometry,Working temperatures[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]modular GFR,neutron leakage,OpenMC,reflector[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘Indonesian Ministry of Research and Technology, Grant/Award Number: The Saintek Scholarship.; Bandung Institute of Technology : The World‐Class Research ITB 2019 and Asahi Research Grant 2019. Funding information’}, {‘$’: ‘This work was supported by the Indonesian Ministry of Research, Technology, and Higher Education, especially the Saintek Scholarship and Flagship Basic Research of Higher Education, BAPETEN, Asahi Research Grant 2019, and World‐class research ITB 2019, which we are gratefully acknowledged.’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1002/er.6042[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]