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Heavy water reactor spent-fuel regeneration with fusion neutrons

Conference · · Transactions of the American Nuclear Society; (USA)
OSTI ID:6090668
In recent work, the regeneration of CANDU spent fuel in a deuterium-tritium (D-T)-driven hybrid reactor blanket has been investigated. Scientists and engineers now have begun to believe that the economic feasibility of advanced fusion fuel cycles will be possible soon after the first generation of reactors based on conventional fusion fuel (D-T). In the work reported in this paper, a semicatalyzed deuterium-deuterium (D-D) fusion reactor has been investigated to drive a fissile blanket that contains CANDU spent fuel. The fuel regeneration has been studied coupled with substantial electricity production in situ. The main conclusions can be summarized as follows: (1) The spent-fuel regeneration in a semicatalyzed (D-D) fusion-fission blanket proceeds faster than the pure (D-T)-driven hybrid blanket per incident fusion neutron energy load at the first wall; (2) The high blanket multiplication factor M allows one to produce abundant electricity in situ; (3) The blanket produces a substantial amount of tritium for satellite (D-T) fusion reactors; (4) The spent fuel can be regenerated to be used in an advanced CANDU reactor with thorium recycling, even to the degree necessary for use in a conventional LWR. 1 ref., 1 fig.
OSTI ID:
6090668
Report Number(s):
CONF-891103--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 60
Country of Publication:
United States
Language:
English