CsI:Gd 결정 육성과 섬광 특성
Crystal Growth and Scintillation Properties of CsI:Gd
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CsI:Gd crystal was grown by the Bridgeman method and its scintillation properties were investigated. The wavelength peak of the luminescence spectrum for the crystal excited by X-ray was 419 nm. The range of the spectrum was from 300 nm to 800 nm. The spectrum well matched to the quantum efficiency of a typical bi-alkali photo-multiplier tube(PMT). An energy resolution of 48.2 % was obtained for 662 keV -rays of 137Cs. The three decay times were obtained as a fast(557.4 ns, 42.2 %), intermediate (1.78 s, 29.7 %) and slow (5.43 s, 28.1 %) components, respectively.
Abstract
CsI:Gd crystal was grown by the Bridgeman method and its scintillation properties were investigated. The wavelength peak of the luminescence spectrum for the crystal excited by X-ray was 419 nm. The range of the spectrum was from 300 nm to 800 nm. The spectrum well matched to the quantum efficiency of a typical bi-alkali photo-multiplier tube(PMT). An energy resolution of 48.2 % was obtained for 662 keV -rays of 137Cs. The three decay times were obtained as a fast(557.4 ns, 42.2 %), intermediate (1.78 s, 29.7 %) and slow (5.43 s, 28.1 %) components, respectively.
참고문헌 (12)
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