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Report No.

Fuel cycle design for ITER and its extrapolation to DEMO

Konishi, Satoshi*; Glugla, M.*; Hayashi, Takumi

ITER is the first fusion device equipped with a complete deuterium tritium fuel cycle that continuously provides fuel to the burning plasma while reprocessing its exhaust using 3 kg of tritium on site. For the tritium safety, a multiple barrier concept for confinement with detritiation systems is applied. Major part of the fusion tritium system will be verified with ITER. Toward the DEMO plant that will generate energy and operate its closed fuel cycle, breeding blanket and power train will be the major addition. Although essential process components will be similar to those to be developed for ITER, tritium inventory control and sustain the fuel supply, and minimizing environmental release will bring another level of technical challenge. The dedicated isotope separation system and adequate system for accountancy should be required as a control of tritium production. For the tritium confinement, also blanket, its coolant, and generation systems will be the critical systems.



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Category:Nuclear Science & Technology



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