Cs2LiGdCl6 (Ce): New scintillation material |
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| Authors: | Gul Rooh HJ Kim H Park Sunghwan Kim |
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| Institution: | 1. Department of Physics, Abdul Wali Khan University, Mardan 23200, NWFP, Pakistan;2. Department of Physics, Kyungpook National University, Daegu 702-701, Republic of Korea;3. Department of Radiology Technology, Cheongju University, Cheongju, Chungkbuk, 360-764, Republic of Korea |
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| Abstract: | We investigated the scintillation properties of Cs2LiGdCl6:Ce3+ as a function of the Ce concentration. X-ray excited luminescence spectra of the scintillation material showed broad emission bands between 360 and 460 nm, with two overlapping peaks, due to the d→f transitions on Ce3+ ions. The samples provide good scintillation results. The energy resolution was found to be 5.0% (FWHM) at 662 keV for 10% Ce sample. Under γ-ray excitation, Cs2LiGdCl6:Ce3+ showed three exponential decay time components of about 130–200 ns decay time constant. The light output of the investigated samples was 20,000 photons/MeV for a 10% Ce concentration. The light output deviation from the linear response is within 7% between the energy range of 31 and 1333 keV. Overall, the scintillation properties confirm that Cs2LiGdCl6:Ce3+ single crystal is a promising candidate for medical imaging and radiation detection. |
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| Keywords: | A1 Crystal A1 Energy resolution A1 X-ray B2 Light yield B3 Scintillation |
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