All aspects of radiation damage to materials are of interest in our research. While there is an interest in designing radiation hard materials, such as materials that are resistant to embrittlement for use in reactor pressure vessels, there is also an interest in designing radiation soft materials for use as sensitive diagnostics or for use in validation experiments. Radiation damage studies require us to model the evolution of radiation damage beyond the primary defects, i.e., to study defect evolution. In support of this we look at using defect-specific diagnostics. We also look at using radiation exposure at cryogenic and elevated temperatures in order to validate our modeling of material response.
Contact: P.J. Griffin
Publications
- J.-Ch. Sublet, et al., Neutron-induced damage simulations: Beyond defect production cross-section, displacement per atom and iron-based metrics, Eur. Phys. J. Plus, Vol. 134, article number: 350 (2019)
- ASTM, E722-14 and E722-19, "Standard Practice for Characterizing Neutron Fluence Spectra in Terms of an Equivalent Monoenergetic Neutron Fluence for Radiation-Hardness Testing of Electronics", 2014
- P. J. Griffin, "Detailed description of the derivation of the silicon damage response function", Mar. 2016
- B. D. Hehr, “Partitioning of Ionization and Displacement Kerma in Material Response Functions”, Sandia Technical Report SAND2016-4467, (2016).