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Updated: Nov 16, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Optically stimulated luminescence decay and dosimetric properties of cerium-doped potassium sulfate phosphor
Renata Majgier1, Mikhail Tsvirko1, Arkadiusz Mandowski1
1Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University, ul. Armii Krajowej 13/15, 42-200 Czestochowa, Poland.
Abstract:
Optically stimulated luminescence (OSL) is used for dating in archaeology and geology, and in dosimetry of ionizing radiation. Some crystalline wide band-gap insulators may be used as OSL radiation detectors. Recently it was found that cerium-doped potassium sulfate crystals have promising luminescence properties. This paper presents some OSL properties of K2 SO4 :Ce crystals that were prepared in the form of pellets. The crystals exhibited a strong luminescence signal, good measurement repeatability, and high sensitivity for ionizing radiation. Best results were obtained after annealing at 1000°C. Dose-dependence characteristics were determined in the range 10 mGy to 11.2 Gy. OSL decay curves consisted of several components. Fast and slow OSL components of the phosphor had different properties. The slow component was quite stable and obeyed power law dependence. It decayed in the 55 days after irradiation. Its luminescence properties depended on sample preparation and the storage time after irradiation.
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