6533b834fe1ef96bd129d4de
RESEARCH PRODUCT
Comparison of the F-type center thermal annealing in heavy-ion and neutron irradiated Al2O3 single crystals
E. ShabloninAnatoli I. PopovV. N. KuzovkovA.m. MoskinaEvgeni Vasil'chenkoEugene A. KotominAleksandr Lushchiksubject
010302 applied physicsNuclear and High Energy PhysicsMaterials sciencePhysics::Instrumentation and DetectorsAnalytical chemistry02 engineering and technologyElectronAtmospheric temperature range021001 nanoscience & nanotechnology01 natural sciencesIonCondensed Matter::Materials Science0103 physical sciencesSapphireNeutronIrradiation0210 nano-technologyAbsorption (electromagnetic radiation)LuminescenceInstrumentationdescription
Abstract The optical absorption and thermally stimulated luminescence of Al2O3 (sapphire) single crystals irradiated with swift heavy ions (SHI) 238U with energy 2.4 GeV is studied with the focus on the thermal annealing of the F-type centers in a wide temperature range of 400–1500 K. Its theoretical analysis allows us to obtain activation energies and pre-exponentials of the interstitial oxygen ion migration, which recombine with both types of immobile electron centers (F and F+ centers). A comparison of these kinetics parameters with literature data for a neutron-irradiated sapphire shows their similarity and thus supports the use of SHI-irradiation for modeling the neutron irradiation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-01 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |