New ideas in dosimetry and damage calculations for fusion materials irradiations

Abstract

The submitted manuscript baa been authored by a contractor of the V. 8. Government under contract No. W-31-10U-BNG-38. Accordingly, the V. S. Government retaint a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow other* to do so, for TJ. S. Government purpose*.

Ultra Trace Determination Scheme for26Al by High-Resolution Resonance Ionization Mass Spectrometry using a Pulsed Ti:Sapphire Laser

“…It is suggested, that the product yield of 26 Al can be used for diagnostics of fusion reactor plasma and its dosimetry. [6][7][8] The production rate of 26 Al by an intense irradiation of neutrons at typically 14 MeV at ITER is high and thus, 26 Al/ 27 Al ratios in aluminum alloy and/or ceramic might exceeded 10 À9 , 9) i.e. up to 1 ng of 26 Al would be detectable in 1 g of aluminum sample.…”

Neutron-induced damage simulations: Beyond defect production cross-section, displacement per atom and iron-based metrics

“…Calculations show that the helium production in alloys containing iron can be greatly enhanced by doping with 55 Fe and 54 Fe, although the short-lived nature of the former -a radioactive unstable isotope-would make such an approach in that case challenging. Irradiations of copper samples in HFIR showed a significant non-linear increase in helium production with increasing neutron fluence [35]. Such a non-linear effect is characteristic of the in-growth on a reaction product that has a thermal neutron (n,α) cross-section such as 59 Ni.…”