Scintillation and spectroscopic properties of Ce3+-doped YAlO3 and Lux(RE)1-xAlO3(RE = Y3+ and Gd3+) scintillators

被引：58

作者：

Mares, JA

Nikl, M

Solovieva, N

D'Ambrosio, C

de Notaristefani, F

Blazek, K

Maly, P

Nejezchleb, K

Fabeni, P

Pazzi, GP

de Haas, JTM

van Eijk, CWE

Dorenbos, P

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

[2] CERN, Div EP, CH-1211 Geneva 23, Switzerland

[3] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

[4] Crytur Ltd, Turnov 51101, Czech Republic

[5] CNR, IFAC, I-50127 Florence, Italy

[6] Delft Univ Technol, Inst Interfac Reactor, Radiat Technol Grp, NL-2629 JB Delft, Netherlands

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 498卷 / 1-3期

关键词：

YAlO3 : Ce and Lux(RE)(1-x)AlO3 : Ce scintillators; scintillation; photoelectron yield; light yield; spectroscopic properties;

D O I：

10.1016/S0168-9002(02)01996-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Scintillation properties like photoelectron yield and light yield of Ce3+-doped YAlO3 and mixed Lu-x(RE)(1-x)AlO3 (RE = Y3+ and Gd3+) perovskite crystals are presented. The photoelectron yields increase almost linearly with gamma-ray energy but a small non-linearity is observed around 40 keV. Scintillation and spectroscopic properties like UV or X-ray excited emission, laser excited emission, excitation and absorption spectra and photo- and scintillation decay of the different crystals are compared. The influence of intrinsic absorption and reflecting tape on the yields are discussed. Selected YAlO3:Ce showed the highest light yield of 25,000 phels/MeV and an energy resolution of 4.5 % for 662 keV gamma-radiation. The gamma-ray linear absorption coefficient increases with Lu content and that of LuAlO3:Ce is almost 10 times higher than that of YAlO3:Ce. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：312 / 327

页数：16

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