19 research outputs found
Two-photon excitation and luminescence of a CaWO4 scintillator
No full textLuminescence of a CaWO4 scintillator was studied in the temperature range 77–500 K using intense laser excitation in the 450–600 nm spectral region. Characteristics of the observed blue emission are similar to those of the intrinsic luminescence of calcium tungstate. The emission is concluded to be caused by cascade excitation of CaWO4 that results in a two-photon excited (TPE) luminescence. The features of TPE luminescence of CaWO4 are analysed in comparison to those obtained with UV and X-ray excitation
Optical and scintillation properties of Ce3+ doped LiYF4 and LiLuF4 crystals
No full textOptical properties of LiYF4:Ce and LiLuF4:Ce were studied viz. optical absorption spectra and X-ray induced emission spectra. The scintillation characteristics of LiYF4:Ce and LiLuF4:Ce were investigated viz. gamma-ray induced pulse height spectra and decay time measurements. A model is presented to describe the variation of X-ray induced emission intensity of LiYF4:Ce crystals with temperature
Efficient Alpha Radiation Detector using Low Temperature Hydrothermally Grown ZnO:Ga Nanorod Scintillator
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Effect of annealing temperature on properties of yttrium-doped ZnO thin films grown by radio-frequency magnetron sputtering
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