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Radioactive Safety Estimates for ITER TBM Systems

M. Zucchetti, L. Guerrini, Y. Poitevin, I. Ricapito, M. Zmitko

Fusion Science and Technology

Volume 60 / Number 2 / August 2011 / Pages 765-770


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The determination of the radioactive inventory and of the contact dose rates in the different ITER Test Blanket Modules systems is carried out, both for Helium-Cooled Lithium-Lead (HCLL) concept and the Helium-Cooled Pebble-Bed (HCPB) concept. The evaluations have been carried out by means of the MICROSHIELD code, starting from the data on the neutron-induced radioactivity in the blanket materials, completely available for both the blanket modules. The possible sources of radioactive material in all the systems have been individuated and their contributes estimated. In general, for both HCLL and HCPB systems, radioactivity inventory and contact dose rates turn out to be quite moderate. No particular radioactive safety concern should arise for the examined components.

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