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RESEARCH PRODUCT

Radiation defects and transition ions interaction in magnesium oxide

U. UlmanisNina Mironova-ulmaneV. Skvortsova

subject

PhysicsNuclear and High Energy PhysicsAbsorption spectroscopyAnnealing (metallurgy)MagnesiumDopingAnalytical chemistrychemistry.chemical_elementActivation energyManganeseIonCondensed Matter::Materials ScienceNickelchemistryInstrumentation

description

Abstract The absorption spectra of nickel and manganese doped and pure MgO single crystals were investigated before and after fast neutron irradiation and after annealing. It is shown that the fast neutron irradiation leads to the formation of two types complex center: “Me 2+ –F + (or F) center” and “Me 3+ –V Mg ”. From the behavior of the ∼570 and ∼357 nm absorption bands during annealing the activation energies of the corresponding defects are determined. The obtained activation energy values ( E a

yearjournalcountryeditionlanguage
2007-09-01Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
https://doi.org/10.1016/j.nima.2007.05.063