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Report No.
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Basic analysis on isotopic barrier of material attractiveness based on plutonium composition of FBR

Permana, S.; Suzuki, Mitsutoshi; Saito, Masaki

Fuel behaviors of the large fast breeder reactor have been investigated as well as material attractiveness based on isotopic plutonium composition for evaluating proliferation resistance aspect in regards to combine evaluation of decay heat and spontaneous fission neutron barrier as key parameters of isotopic material barrier. Trans-uranium fuel TRU in the core regions and doping MA in the blanket regions as the option of loading MA, produces higher $$^{238}$$Pu composition for denaturing plutonium which mainly comes from converted $$^{237}$$Np. Isotopic plutonium composition of TRU fuel has relatively less than its Pu composition of MOX fuel except for $$^{238}$$Pu composition which is obtained higher composition than MOX fuel. MA in the core or blanket regions which produces higher $$^{238}$$Pu composition becomes the key role for obtaining higher level material barrier of decay heat and spontaneous fission neutron compositions.

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Category:Nuclear Science & Technology

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