Article ID Journal Published Year Pages File Type
1888004 Radiation Measurements 2016 6 Pages PDF
Abstract

•Kinetic simulation of 5.08 eV optical bleaching of LiF:Mg,Ti.•Effect on optical absorption spectrum.•Participation of V centers in bleaching mechanism.

Kinetic simulations of charge transfer in the framework of the conduction band/valence band model are described which investigate the effect of 5.08 eV photon bleaching on the optical absorption spectrum of irradiated LiF:Mg,Ti (TLD-100). The decrease in intensity of the 3.8 eV and 4.3 eV bands, newly discovered sub-entities of the 4.0 eV composite band, is interpreted as arising from the participation of holes released by capture of electrons at V3 two-hole-centers. The simulations also require highly efficient electron transfer from the excited state of the F center to the V3 center which is necessary to guarantee an adequate supply of released holes following the V3-Vk transformation.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Radiation
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