The optically stimulated luminescence (OSL) of SrSO4:Eu (01mol%) powder samples was studied. The continuous wave OSL and linearly modulated OSL curves measured after irradiation by beta rays of 90Sr in the dose range of 0116—116kGy, illustrate that there are four components in OSL signal and the OSL dose response is linear-sublinear. Thermal stability of OSL signal was also measured, and the results showed that OSL from SrSO4:Eu is quite stable a t temperatures up to ~200℃. Meanwhile, the intensity of OSL signal is stronges t when the read temperature is about 180℃. The thermal luminescence(TL) three-d imensional spectra were measured after gamma rays irradiation (absorbed dose is 100Gy) of 60Co source. The emission wavelength at about 375nm indicate s that the luminescence comes from the transitions between energy levels of Eu 2+.
Keywords:
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OSL
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TL
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SrSO4:Eu