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Global Depletion Analysis of Korean Helium-Cooled Solid Breeder TBM Model for Testing in ITER

Sunghwan Yun, Nam Zin Cho, Mu-Young Ahn, Seungyon Cho

Abstract

The Korean HCSB (Helium Cooled Solid Breeder) TBM (Test Blanket Module), whose breeding zone is composed of lithium ceramic, beryllium and graphite in pebble form, was designed based on LOCAL assumption. In this research, we establish a simple preliminary GLOBAL neutronics model for the Korean HCSB TBM and perform neutronics analyses including depletion (transmutation) calculation during 500EFPDs (Effective Full Power Days) using the modified MONTEBURNS code. The neutronics characteristics for D-D plasma phase are investigated in the preliminary GLOBAL neutronics model, and the results are compared with those of D-T plasma phase. Moreover, we also establish the A-lite based GLOBAL neutronics model for more reliable neutronics calculation, and the results are compared with each other.

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Key concepts: Neutron transport, Blanket, Nuclear engineering, Beryllium, Breeder (animal), Nuclear physics, Helium, Materials science