Induced ageing of ZnS:Ag microparticles exposed to 13 keV electron beam
A Scurtu,
D Ticos,
M L Mitu
et al.
Abstract:Phosphorescent microparticles made of ZnS:Ag were exposed to pulsed electron beams with an energy of 13 keV for periods of time between 30 minutes and 240 minutes. An XRD analysis showed no modification of crystalline structure. The average cristalites of ZnS:Ag was 62 nm deduced from SEM imaging. The luminescence spectra showed a decreasing activity with 40% after 30 minutes of irradiation at a fluence of 5.79 x 1016 electrons/cm2. The broad peak between 445 nm to 480 nm centered aroud 460 nm with a FWHM almo… Show more
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