TY - JOUR
T1 - Photoluminescence and scintillation properties of Yb2+-doped SrCl2 crystals
AU - Sekine, Dai
AU - Fujimoto, Yutaka
AU - Koshimizu, Masanori
AU - Nakauchi, Daisuke
AU - Yanagida, Takayuki
AU - Asai, Keisuke
N1 - Publisher Copyright:
© 2020 The Japan Society of Applied Physics.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - The photoluminescence and scintillation properties of undoped SrCl2 and SrCl2:Yb2+ (0.025, 0.25, 0.5, and 1 mol%) crystals have been investigated. These crystals were grown by the vertical Bridgman method. We observed two emission bands centered at 380 nm and 407 nm whose decay time constants are 500 ns and 550 μs, respectively, and are ascribed to spin-allowed (Ybsa) and spin-forbidden (Ybsf) Yb2+ 5d-4f transitions, respectively. 0.025%SrCl2:Yb2+ showed the highest light yield of 55 000 photons/MeV for various concentrations of SrCl2:Yb2+ and this value is comparable with 56 000 photons/MeV reported for 0.5%SrI2:Yb2+.
AB - The photoluminescence and scintillation properties of undoped SrCl2 and SrCl2:Yb2+ (0.025, 0.25, 0.5, and 1 mol%) crystals have been investigated. These crystals were grown by the vertical Bridgman method. We observed two emission bands centered at 380 nm and 407 nm whose decay time constants are 500 ns and 550 μs, respectively, and are ascribed to spin-allowed (Ybsa) and spin-forbidden (Ybsf) Yb2+ 5d-4f transitions, respectively. 0.025%SrCl2:Yb2+ showed the highest light yield of 55 000 photons/MeV for various concentrations of SrCl2:Yb2+ and this value is comparable with 56 000 photons/MeV reported for 0.5%SrI2:Yb2+.
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U2 - 10.7567/1347-4065/ab4e4c
DO - 10.7567/1347-4065/ab4e4c
M3 - Article
AN - SCOPUS:85079785557
VL - 59
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 1
M1 - 012005
ER -