Ce-doped scintillators: LSO and LuAP

被引：111

作者：

Lempicki, A

Glodo, J

机构：

[1] Boston Univ, Dept Chem, Boston, MA 02215 USA

[2] ALEM Associates, Boston, MA 02115 USA

[3] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 416卷 / 2-3期

关键词：

scintillator; detectors;

D O I：

10.1016/S0168-9002(98)00689-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this paper we compare the scintillator performance of the two of the leading contenders for Positron Emission Tomography, both cerium doped: Lu2SiO5 (LSO) and LuAlO3 (LuAP). LSO crystals come in two categories, characterized by high (H) or low (L) light output. Such a distinction is not found in LuAP, but its output is consistently lower than that of LSO-H. Based on decays, thermoluminescent data and dependence of light output on temperature, we conclude that the principal reason for the superior properties of LSO-H is its virtual absence of shallow traps. LuAP also suffers from an additional handicap in the form of a parasitic absorption of unknown origin, which causes a light output dependence on the thickness of the sample. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：333 / 344

页数：12

共 27 条

[1] Electron multiplication in scintillators and phosphors [J].