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Analysis on isotopic plutonium barrier based on spent nuclear fuel of LWR
Permana S.a, Novitriana, Ismailb, Suzuki M.c, Saito M.d
a Nuclear Physics and Bio Physics Research Group, Department of Physics, Bandung Institute of Technology, Indonesia
b Center for Technical Assessment of Nuclear Installation and Materials, Nuclear Energy Regulatory, Canada
c Department of Science and Technology for Nuclear Material Management (STNM), Japan Atomic Energy Agency (JAEA), Japan
d Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Japan
[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]Recycling option of spent nuclear fuels (SFN) from the reactors is one of the hot issues in term of fuel utilization of recycling fuel for extending sustainability of nuclear fuel as well as nuclear non-proliferation because of plutonium utilization. The potential risk of plutonium utilization can be reduced by maintaining the isotopic plutonium barrier. Plutonium barrier can be increased by producing more even-mass plutonium isotopes or by increasing the irradiation time process which can burn much more fissile material in the reactors. The present study intends to analyze some important aspects of isotopic material barrier of plutonium composition based on the composition of spent nuclear fuel of light water reactors (LWRs). Some parameters of material barrier are evaluated such as decay heat (DH) and spontaneous fission neutron (SFN) which depends on plutonium isotopic compositions. The results show that increased production of even-mass plutonium (Pu-238, Pu-240 and Pu-242) can be easily achieved by increasing the burnup level, which also effectively reduces fissile Pu-239 production because more fissile material is consumed. Higher DH from even-mass plutonium can be achieved with higher burnup and longer cooling time because of high contribution of individual decay heat properties of even-mass plutonium especially from Pu-238 contribution. In addition, higher SFN composition can be obtained with a higher burnup level and longer cooling time, which is mainly due to the Pu-240 contribution. Higher burnup and longer cooling time are effective for increasing the even-mass plutonium composition. It is explained that higher irradiation process and cooling times are effective for increasing the proliferation resistance level of plutonium due to the level of even-mass plutonium as well as increasing the decay heat and spontaneous fission neutron as material barrier parameters. © 2014 Elsevier Ltd. All rights reserved.[/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]Burn up,Irradiation process,Isotopic composition,LWR,Nuclear non-proliferation,Proliferation resistance,Spent nuclear fuels,Spontaneous fission neutron[/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]Burnup,Cooling,Even mass plutonium,Isotopic plutonium,LWR,Material barrier[/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]We would like acknowledge and extend our gratitude to Research Program of National Innovative System (NIS/SINAS) Ministry for Research and Technology Republic of Indonesia for the research Grant and publications.[/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/10.1016/j.anucene.2014.07.036[/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]