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Report No.

Simulation of energy transfer to extraction solvent by radiation in minor actinides separation process

Toigawa, Tomohiro   ; Tsubata, Yasuhiro   ; Matsumura, Tatsuro  

Radiation energy transfer to extraction solvent in minor actinide separation process were simulated by using a Particle and Heavy Ion Transport code System (PHITS). PHITS enabled to calculate the absorbed dose to extraction solvent in situations of intricately shaped apparatus or oil-water mixed state because the code were based on Monte-Carlo algorithm. It was found that the absorbed dose value from $$gamma$$-ray depended on the size of the apparatus, while that from alpha-ray was depended on the droplet size in oil-water mixed state. It was demonstrated the degradation yields of the extractant could be evaluated by reference to the experimentally obtained G-values.



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