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RESEARCH PRODUCT

Thermostimulated recombination processes in LiBaF3 crystals

Noboru IchinoseP. KulisMartin NiklKiyoshi ShimamuraI. GromulsI. Tale

subject

RadiationAbsorption spectroscopybusiness.industryChemistryRadiationCrystallographic defectThermoluminescenceMolecular physicsDelocalized electronOpticsLuminescencebusinessAbsorption (electromagnetic radiation)InstrumentationRecombination

description

Abstract The creation of radiation defects in LiBaF 3 crystals at 10 K and the processes of their thermostimulated recombination are investigated. The methods of optical absorption, thermal bleaching of color centers, thermostimulated luminescence and fractional glow technique are used. The radiation defects anneal in a multi-stage process accompanied with thermo-luminescence at 20, 46, 105, 130, 170, 210 and 270 K . Differences in the optical absorption spectra measured before and after the TSL peaks are obtained and recombination parameters are determined. The TSL peak at 20 K arises from the delocalization of H-centers. The presence of two TSL peaks related to V K -centers at 105 and 130 K indicates that 60° and 90° migration hops occur.

yearjournalcountryeditionlanguage
2004-08-01Radiation Measurements
https://doi.org/10.1016/j.radmeas.2004.03.001