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Transmutation and Production Rates of Elements in Flibe and Flinabe with Impact on Chemistry Control

Mohamed E. Sawan, Dai-Kai Sze

Fusion Science and Technology / Volume 44 / Number 1 / July 2003 / Pages 64-68

Technical Paper / Fusion Energy - MFE Chamber Technology

Neutronics calculations were performed for blanket designs using the molten salts Flibe and Flinabe to determine the transmutation rates of constituent elements and the rates of production of other elements. At least from mass balance considerations no free fluorine will be left provided that the recombination reactions with freed Be, Li, Na, and tritium are fast enough. However, more than 95% of the tritium bred will be in the form of TF. In addition, O and N are produced. A REDOX reaction needs to be established to control the TF activities. The Be used for neutron multiplication can be used for the REDOX control to reduce TF to T2. The thermodynamics for the reaction between TF and Be is an important process to be demonstrated.

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