Study of LaCl3:Ce light yield proportionality with a hybrid photomultiplier tube

被引：15
作者：
D'Ambrosio, C
de Notaristefani, F
Hull, G
Cenceill, VO
Pani, R
机构：
[1] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy
[2] Univ Roma Tre, Dipartimento Ingn Elettron, I-00146 Rome, Italy
[3] Ist Nazl Fis Nucl, I-00146 Rome, Italy
[4] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy
[5] CERN, CH-1211 Geneva 23, Switzerland
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 556卷 / 01期
关键词：
scintillation crystals; LaCl3 : Ce; gamma-detection; non-proportionality of light output; Hybrid Photon Detector;
D O I：
10.1016/j.nima.2005.10.001
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In these years a great interest has been growing for the cerium-doped lanthanum crystals due to their high scintillation yield wellmatched to present photocathodes, which makes them promising for nuclear medical imaging. In this paper we report on the LaCl3:Ce scintillation response, with the aim to evaluate its degree of non-proportionality. Light yields of LaCl3:Ce, expressed in photoelectron numbers, were measured for X-ray and gamma-energies ranging between 13.4 and 1332 keV. In the same energy range, the energy resolution was also measured. The test was performed with a 25 x 25 x 3 mm(3) crystal mounted on a Hybrid Photomultiplier Tube (HPMT) PP0470 by DEP. We observed the presence of two different ranges of LaCl3:Ce light yield response, respectively, for energies higher than (22)Na511 keV and for energies lower than (CO)-C-57-122 keV. A sensible difference of light yield was observed in these two regions. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：187 / 191
页数：5
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