Scintillation properties of a La, Lu-admix gadolinium pyrosilicate crystal

In order to obtain new scintillator with higher effective atomic number, a pyrosilicate crystal with a composition (Ce0.01, Gd0.54, La0.25, Lu0.20)2Si2O7 (Ce:LaLu-GPS) was grown by the floating zone method. Emission wavelengths of this material were at 370 and 390nm. Gamma-ray-excited pulse height a...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 784; pp. 115 - 118
Main Authors Kurosawa, Shunsuke, Shishido, Toetsu, Suzuki, Akira, Sugawara, Takamasa, Nomura, Akiko, Yubuta, Kunio, Shoji, Yasuhiro, Yokota, Yuui, Pejchal, Jan, Ohashi, Yuji, Kamada, Kei, Yoshikawa, Akira
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2015
Subjects
Ce-doped (La, Lu, Gd)2Si2O7
Pyrosilicate crystal
Scintillator
Ce-doped (La, Lu, Gd)2Si2O7
Scintillator
Pyrosilicate crystal
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Summary:In order to obtain new scintillator with higher effective atomic number, a pyrosilicate crystal with a composition (Ce0.01, Gd0.54, La0.25, Lu0.20)2Si2O7 (Ce:LaLu-GPS) was grown by the floating zone method. Emission wavelengths of this material were at 370 and 390nm. Gamma-ray-excited pulse height and scintillation decay measurement showed that Ce:LaLu-GPS had a light output of 34,000±2000 photons/MeV, an FWHM energy resolution of 6.9±0.2%, and the decay time components of 59±1ns (13%) and 570±20ns (87%).
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2014.12.108