Abstract
Collision cascade processes using the binary collision approximation and molecular dynamics are introduced. The combination of these approaches makes it possible to simulate the generation of cascade by neutrons with a wide energy. Various models of the irradiation creep mechanism as a macroscopic phenomena of radiation damage were proposed and the simulation was supported by the experimental result. Based on the radiation deformation mechanism, radiation induced stress relaxation in a fusion reactor was predicted. Simulation calculation of neutron spectrum, displacement of atoms, transmutation, and induced activity for candidate structural materials were made. Transmutation of some elements like W and V are influenced by the neutron spectrum. Simulation methodology for selecting optimum materials from the viewpoints of nuclear properties is presented.
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Noda, T., Nagakawa, J. (1999). Computational Approach to the Fusion Reactor Materials. In: Saito, T. (eds) Computational Materials Design. Springer Series in Materials Science, vol 34. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03923-6_6
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DOI: https://doi.org/10.1007/978-3-662-03923-6_6
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