LaCl3:Ce scintillator for γ-ray detection

被引：76

作者：

Shah, KS ^{[1
]}

Glodo, J

Klugerman, M

Cirignano, L

Moses, WW

Derenzo, SE

Weber, MJ

机构：

[1] Radiat Monitoring Devices Inc, Watertown, MA 02472 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 505卷 / 1-2期

关键词：

scintillation crystals; rare-earth trihalides; LaCl3 : Ce; gamma-detection;

D O I：

10.1016/S0168-9002(03)01024-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this paper, we report on a relatively new cerium-doped scintillator-LaCl3 for gamma-ray spectroscopy. Crystals of this scintillator have been grown using Bridgman method.. This material when doped with 10% cerium has high light output (similar to50,000 photons/MeV) and fast principal decay time constant (similar to20 ns). Furthermore, it shows excellent, energy resolution for gamma-ray detection. For example, energy resolution as low as 3.2% (FWHM) has been achieved with 662 keV photons (Cs-137 source) at room temperature. Also, high timing resolution (264 ps-FWHM) has been recorded with LaCl3-PMT and BaF2-PMT detectors operating in coincidence using 511 keV positron annihilation gamma-ray pairs. Details of crystal growth, scintillation properties, and variation of these properties with cerium concentration are also reported. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：76 / 81

页数：6

共 7 条

[1]

[Anonymous], 1986, Crystal Growth Processes

[2] MEASUREMENT OF TIME DEPENDENCE OF SCINTILLATION INTENSITY BY A DELAYED-COINCIDENCE METHOD [J].