Luminescence and scintillation properties of Lu0.8Gd1.2SiO5:Ce and Lu1.8Gd0.2SiO5:Ce single crystals: A comparative study

A comparative study on the scintillation characteristics of Gd2SiO5:Ce and Lu1.2Gd0.8SiO5:Ce scintillators

“…the number of photoelectrons the number of photons 100 1 = The scintillation light yield of Ce:LGSO and Ce:GSO scintillators will be 28,600 ± 2,900 photon/MeV and 12,600 ± 1,300 photon/MeV, respectively. The light yield of studied Ce:LGSO in this work and Ce:LGSO with the same size in [20] are comparable. Although the scintillation light yield of the Ce:LGSO scintillator is about 2.3 times more than that of the Ce:GSO scintillator, both scintillators' energy resolution was almost no different.…”

“…While the Ce:GSO crystal shows the 13,900 ± 1,400 photon/MeV intrinsic light yield and 1.20 cm −1 loss parameter. The intrinsic light yield and loss parameter of the Ce:LGSO (Lu 1.8 Gd 0.2 SiO 5 :Ce) in the research of Yawai et al [20] are about 29,900 ± 3,000 photon/MeV and 0.40 cm −1 , respectively. Although the intrinsic light yield of the studied Ce:LGSO (Lu 1.2 Gd 0.8 SiO 5 :Ce) crystal is slightly better than that of the Ce:LGSO (Lu 1.8 Gd 0.2 SiO 5 :Ce) crystal in [20], but the loss parameter value of the studied Ce:LGSO crystal is worse.…”

“…The intrinsic light yield and loss parameter of the Ce:LGSO (Lu 1.8 Gd 0.2 SiO 5 :Ce) in the research of Yawai et al [20] are about 29,900 ± 3,000 photon/MeV and 0.40 cm −1 , respectively. Although the intrinsic light yield of the studied Ce:LGSO (Lu 1.2 Gd 0.8 SiO 5 :Ce) crystal is slightly better than that of the Ce:LGSO (Lu 1.8 Gd 0.2 SiO 5 :Ce) crystal in [20], but the loss parameter value of the studied Ce:LGSO crystal is worse. These loss parameter values of both Ce:LGSO crystals show that the luminous efficiency of the studied Ce:LGSO crystal is worse than that of the crystal in [20] if the crystal thickness is increased.…”