Comparison between YAP:Ce and CsI(Tl) multipillar matrices

被引：8

作者：

Vittori, F

Malatesta, T

de Notaristefani, F

机构：

[1] Univ Rome La Sapienza, Ist Nazl Fis Nucl, Sect Rome 1, Dept Phys, I-00100 Rome, Italy

[2] Ist Nazl Fis Nucl, Sect Rome 1, Regina Elena Inst Phys, Med Phys Lab, Rome, Italy

[3] E Amaldi Univ Rome 3, Ist Nazl Fis Nucl, Sect Rome 1, Dept Phys, Rome, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 418卷 / 2-3期

关键词：

YAP : Ce; CsI(T1); multipillar structure; position-sensitive photomultipliers; segmented crystal scintillators; gamma-ray imager;

D O I：

10.1016/S0168-9002(98)00763-3

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The characteristics of segmented CsI(TI) and YAP:Ce scintillators coupled to a position-sensitive photomultiplier tube (PSPMT Hamamatsu R2486) have been measured and compared to evaluate the potential use of such scintillators as precise X- and gamma-ray imagers. For such configurations, we obtained good spatial resolution and linearity over their entire 40 x 40 mm(2) Fields of View (FOVs). The scintillating matrices consist of orthogonal arrays of crystal pillars with 0.6 x 0.6 mm(2) cross sections and thicknesses of 3 and 10 mm. The 3 mm thick. CsI(TI) matrix shows a light yield of 44% compared to NaI(TI), an energy resolution of 22% FWHM at 122 keV, a single pillar spatial response of 0.5 mm FWHM, and a spatial resolution of 0.83 mm. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：497 / 506

页数：10

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