First test of LSO scintillators for Positron Lifetime Spectroscopy

被引：5

作者：

Haaks, M. ^{[1
]}

Valentini, R. ^{[1
]}

Vianden, R. ^{[1
]}

机构：

[1] Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4, NO 10 | 2007年 / 4卷 / 10期

关键词：

D O I：

10.1002/pssc.200675869

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Lutetium oxyorthosilicate (LSO) was employed as scintillator material in a positron lifetime (PALS) fast-slow spectrometer. Compared to the widely used BaF2 scintillator material, LSO has a single exponential decay with 40 ns, a high density of 7.49 g/cm(3), an effective nuclear charge of 65.8 and a superb light output. With this features photon rates above 5 x 10(6) should be possible, which affords to obtain lifetime spectra within a period of minutes. The physical and mechanical properties make LSO attractive as scintillator material for PALS measurements. The capability of LSO for PALS was studied and compared to BaF2. As a first test of the spectrometer, a lifetime spectrum of well annealed nickel was measured and analyzed. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：4036 / +

页数：2

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