Scattering and stopping of fission fragments. The ionization loss of energy in gases and in condensed materials. Bremsformel für Elektronen relativistischer Geschwindigkeit. Stopping power of electron gas and equipartition rule. The effect of recoil energy spectrum on cascades structure defect production efficiencies. Displacement cascades in polyatomic materials. Chemie Heisser Atome (Verlag Chemie, 1969). Sputtering yield of amorphous and polycrystalline targets. Mechanical properties changes induced in structural alloys by neutron irradiations with different helium to displacement ratios. Defect structure evolution from radiation damage with D-T fusion neutrons. Transmutation behaviour of Eurofer under irradiation in the IFMIF test facility and fusion power reactors. Effects of transmutation elements on the microstructural evolution and electrical resistivity of neutron-irradiated tungsten. Transmutation and induced radioactivity of W in the armor and first wall of fusion reactors. Neutron interactions and atomic recoil spectra. Primary Radiation Damage in Materials: Review of Current Understanding and Proposed New Standard Displacement Damage Model to Incorporate In-cascade Mixing and Defect Production Efficiency Effects (OECD Nuclear Energy Agency, 2015). Basics physics of radiation damage production. Theoretical physics in the metallurgical laboratory of Chicago. Some criteria for a power producing thermonuclear reactor. Structural materials development, together with research on functional materials capable of sustaining unprecedented power densities during plasma operation in a fusion reactor, have been the subject of decades of worldwide research efforts underpinning the present maturity of the fusion materials research programme.Įddington, A. Overcoming the historical lack of a fusion-relevant neutron source for materials testing is an essential pending step in fusion roadmaps. The harder mono-energetic spectrum associated with the deuterium–tritium fusion neutrons (14.1 MeV compared to <2 MeV on average for fission neutrons) releases significant amounts of hydrogen and helium as transmutation products that might lead to a (at present undetermined) degradation of structural materials after a few years of operation. Although fission and fusion materials exhibit common features, fusion materials research is broader. The technological challenges of fusion energy are intimately linked with the availability of suitable materials capable of reliably withstanding the extremely severe operational conditions of fusion reactors. Fusion materials research started in the early 1970s following the observation of the degradation of irradiated materials used in the first commercial fission reactors.
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