Optical and scintillation properties of Nd-doped Lu2Si2O7 single crystals

被引：14

作者：

Kantuptim, Prom ^{[1
]}

Akatsuka, Masaki ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Kato, Takumi ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Grad Sch Sci & Technol, Nara Inst Sci & Technol, Div Mat Sci, 8916-5 Takayama, Ikoma, Nara 6300192, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 860卷

关键词：

Scintillator; Single crystal; Nd3+; Pyrosilicates;

D O I：

10.1016/j.jallcom.2020.158538

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lutetium pyrosilicate (Lu2Si2O7, LPS) single crystals were synthesized by the floating-zone method with different dopant concentration to investigate the Nd-concentration dependence on the photoluminescence (PL) and scintillation properties. The Nd-doped LPS presented PL peaking at 800-900 nm due to the 4-4f transitions with the PL quantum yield up to 34%. Under X-ray irradiation, the samples showed several sharp peaks in both UV-visible and NIR regions. The scintillation decay time constants were around 3-4 mu s upon pulsed X-ray excitation, and the afterglow level at 20 ms after X-ray irradiation was 310-650 ppm. The scintillation light yields of the Nd-doped LPS under gamma-rays from Cs-137 were up to 800 ph/MeV. hMeV. (C) 2020 Elsevier B.V. All rights reserved.

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页数：6

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