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Neutron damage and activation of the first wall of inertial confinement fusion reactors: Recycling and waste disposal

Published online by Cambridge University Press:  09 March 2009

J.M. Perlado
Affiliation:
Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutierrez Abascal, 2, 28006 Madrid, Spain
J. Sanz
Affiliation:
Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutierrez Abascal, 2, 28006 Madrid, Spain

Abstract

Even though general conclusions cannot be derived for all the protection schemes in inertial confinement fusion (ICF) reactors, the feasibility of the ferritic alloy HT-9 as the main component of the first structural wall (FSW) in ICF facilities using thin-film Li17Pb83 liquid protection, flowing through porous tubes (INPORT), can be demonstrated as a solution in terms of radiation damage. Swelling and shift in the ductile-brittle transition temperature (DBTT) can be analyzed using the results of experimental fast-fission reactors, which are demonstrated to be good experimental tools in that ICF range. The good performance of HT-9 is remarkable. The generation of new solid transmutants and the depletion of initial constituents need also be considered. Further, a reduced-activation HT-9 (niobium-free) has been studied using recycling and shallow land burial (SLB) criteria. The recycling using that HT-9 is shown to be not feasible, as is SLB waste disposal. The unexpected critical role of some short-lived isotopes is remarkable, and more research on their nuclear data must be performed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1993

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