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KMID : 0357520060290030141
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Journal of Radiological Science and Technology
2006 Volume.29 No. 3 p.141 ~ p.145
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Luminescence and Photostimulated Luminescence of Eu2+ in Alkaline Earth Chlorides
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Kim Seong-Hwan
Kim Seon-Chil
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Abstract
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In this study, ion was used as an activator in order to enhance the PL(photoluminescene) and PSL(photostimulated luminescence) intensity of (M = Ca, Sr, Ba)phosphors and the chracteristics of PL and PSL of the phosphors were investigated. The emission of (M = Ca, Sr, Ba) phosphors shows a shift wavelength when the host caution changes. The optimal preparing conditions of phosphor were 0.5 mol％ of and the sintering temperature were , 45 min. in atmosphere. The PL and PSL spectra of locate in the range of , peaking at 370 and 380 nm. The optimal preparing conditions of phosphor were 0.5 mol％ of and the sintering temperature were , 45 min. in atmosphere. The PL and PSL spectra of locate in the range of , peaking at 398 nm. The optimal preparing conditions of phosphor were 0.5mol％ of and the sintering temperature were , 45min. in atmosphere. The PL and PSL spectra of locate in the range of , peaking at 407 nm. The dose response of the (0.5 mol%)(M = Ba, Sr) phosphors were linear within of 100 kV X-ray and the PSL intensity of the and phosphors faded to approximately 60 and 40% respectively after 120 min at room temperature.
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KEYWORD
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Photoluminescence, Photostimulated luminescence, Alkaline earth chloride, Eu
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