Abstract
The recovery of radiation damage induced by 156-МeV 132Хе and 2.25-GeV 197Au ions (fluences between 6.6 × 1010 and 2 × 1012 ions/cm2) in MgAl2O4 single crystals has been investigated via stepwise (isochronal) thermal annealing procedure. The integral of elementary bands of radiation-induced optical absorption (result of spectra decomposition into Gaussians) has been considered as a concentration measure of relevant structural defects. The general trends of the multistage annealing kinetics of the oxygen-vacancy-related F+ and F centers (430–850 K) as well as complex cation-related defects responsible for absorption bands peaked at 5.9, 6.6 and ∼7 eV (ends above 1000 K) have been considered. The features of the annealing kinetics of these defects induced by the xenon or gold ions with different values of mean energy loss along the ion trajectories (13.5 and 30.4 keV/nm, respectively) and fluences have been analyzed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
