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Small doses γ-irradiation effect on the photoluminescence properties of porous glasses

Doycho I. K., Gevelyuk S. A., Kovalenko M. P., Prokopovich L. P., Rysiakiewicz-Pasek E.

Optica Applicata

2003

Vol. 33, nr 1

55-65

The g-irradiation effect on the photoluminescence of various types of porous silica glasses and on its change during a half-year storage has been studied. It has been revealed that the photoluminescence intensity of glasses with fine matrix and almost complete absence of silica gel does not change when irradiated at applied doses, but a long-wave shift of its maximum position is observed. The increase in photoluminescence intensity appeared to be the most stable in glasses with the thick-wall matrix. The model which explains apparent changes in photo-luminescent properties and also allows us to draw conclusions about some features of various types of porous silicate glasses structure has been presented.