Kinetics of luminescence intensity decrease on PbWO4 crystal excitation by H+ ion beam

Vladimir K. Egorov; Evgeniy V. Egorov

doi:10.1117/12.410554

18 December 2000 Kinetics of luminescence intensity decrease on PbWO₄ crystal excitation by H⁺ ion beam

Vladimir K. Egorov, Evgeniy V. Egorov

Proceedings Volume 4142, Penetrating Radiation Systems and Applications II; (2000) https://doi.org/10.1117/12.410554
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The luminescence dampness of PbWO₄ crystals upon their excitation by H⁺ ion beam during prolonged time intervals was studied. An exponential law for the luminescence yield reduction at a density of the beam proton irradiation of j approximately equals 6 X 10¹² ion/cm² was registered, with the yield falling to a final value of J_(infinity ) approximately equals 1/3 X J₀. Similar kind modification of the luminescence yield suggests that some channels of the radiative relaxation process for intermediate excited states in the PbWO₄ bandgap could be clocked in part by local high energy excitation produced by energetic protons in the unit cells of lead tungstate.

Citation Download Citation

Vladimir K. Egorov and Evgeniy V. Egorov "Kinetics of luminescence intensity decrease on PbWO₄ crystal excitation by H⁺ ion beam", Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); https://doi.org/10.1117/12.410554

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