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RF activity 2004

RF activity 2004. Minor actinides transmutation study in fusion reactor blankets (ISTC Project #1786) Neutronics analysis, optimization and selection of blanket parameters, analysis of nuclear safety and nuclear power balance with account of plutonium and minor actinides transmutation

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RF activity 2004

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  1. RF activity 2004 • Minor actinides transmutation study in fusion reactor blankets (ISTC Project #1786) Neutronics analysis, optimization and selection of blanket parameters, analysis of nuclear safety and nuclear power balance with account of plutonium and minor actinides transmutation • Experimental validating the activation data of fusion structural materials (collaboration with TUD Dresden) Evaluated activation data for copper alloys • Preparing ISTC proposals for benchmark experiments, evaluations and validation of nuclear data (Tungsten, Flibe)

  2. Main results of ISTC Project №1786 “Blanket of Fusion Reactorfor Transmutation of Minor Actinides and Plutonium” • Project manager: A.V. Lopatkin (KI) • Collaborator: E.T. Cheng (USA) • (2003-2004)

  3. ·   The project is based on the known designs of fission reactors and ITER·   Two blanket design options were analyzed in detail: Water cooled blanket (Option III) Pb-cooled blanket (Option IV)

  4. General features:·ITER plasma·      Hard neutron spectrum ·      High tritium breeding ·      Low Keff=0.460.71·      Acceptable levels of heat generations, temperatures, coolant conditionsNeutronics and thermal analyses were performed for typical blanket accidents

  5.   Transmutation per effective operation year:Option III - 660 kg MA and 820 kg Pu = 21.8 annual WWER-1000 spent fuelOption IV - 490 kg MA (Pu is not loaded) = 16.1 annual WWER-1000 spent fuelWeapon Plutonium could also be transmuted in the same blanket options

  6. Transmutation makes an effect in 200400 years (after decay of 137Cs and 90Sr) The actinides PBH are reduced in spent fuel by 2-3 orders of value, depending on reprocessing The analysis has shown significant effect for transmutation of MA and all Pu from WWER, not MA only

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