Evaluated Material Attractiveness of Plutonium Composition from ESBWR Fungky Iqlima Nasyidiah (a*), Sidik Permana (b,c), Syeilendra Pramuditya (b,c)
Institute of Technology Bandung
Abstract
Nuclear fuel with the involvement of the nuclear material cycle capable of abuse, the assessment of non-proliferative aspects generally measures the level of proliferation resistance, and material attractiveness one that can be used in the measurement. This concept is based on the plutonium barrier by adopting the ATTR, DH, and SFN formulas, also utilizing BCM, Rossi-alpha, and neutron prompt life values as additional analysis materials. This study aims to evaluate material attractiveness on one fuel pin in the core of the ESBWR reactor, calculations were carried out using ORIGEN2.2 for the distribution of nuclide decay along with fission products and MCNP4.4 JENDL 3.3 library to calculate the value of bare critical mass, neutron prompt life. The burnup value used is 33 GWD/t reviewed during the irradiation process, it was seen that the ATTR value was different at some time the burnup achievement when the reactor had just reached a burnup value of 1 GWd/t ATTR value showed >0.1 the fuel was categorized as weapon-grade technology level, when the reactor had reached a burnup value of 2.5 GWd/t (0.076) that it was categorized as Usable-Grade technology level. This condition occurs until the reactor reaches a burnup of 10 GWd/t, the last fuel is categorized as un-usable grade technology level when the reactor reaches a burnup of 15 GWd/t to 33 GWd/t. This is influenced by the Pu-240 value categorized weapon grade when burnup 2.5 GWd/t, when burnup 10 GWd/t categorized as fuel-grade and categorized reactor-grade when burnup 15-30 GWd/t. From these results we can know that the behavior of fuel that becomes proliferation can be controlled by increasing burnup, then the plutonium barrier will act as a barrier to the occurrence of proliferative conditions as well as the influence of DH, SFN and BCM.
Keywords: Resistance Proliferation- Material Attractiveness- Plutonium Barrier- Decay Heat- Spontaneous Fission Neutrin- Bare Critical Mass
