Very high position resolution gamma imaging with resistive plate chambers

被引：4
|
作者：
Blanco, A. [1 ]
Carolino, N.
Correia, C. M. B. A.
Fazendeiro, L.
Ferreira, Nuno C.
Marques, M. F. Ferreira
Marques, R. Ferreira
Fonte, P.
Gil, C.
Macedo, M. P.
机构：
[1] Lab Instrumentacao & Fis Expt Particulas, LIP, P-3004516 Coimbra, Portugal
[2] Univ Coimbra, CEI, P-3004516 Coimbra, Portugal
[3] Univ Coimbra, Fac Med, IBILI, P-3000 Coimbra, Portugal
[4] Univ Coimbra, Dept Fis, ICEMS, P-3004516 Coimbra, Portugal
[5] ISEC, P-3031199 Coimbra, Portugal
[6] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 567卷 / 01期
关键词：
gaseous detectors; photodetectors; RPC; PET;
D O I：
10.1016/j.nima.2006.05.074
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this study we present experimental results from a first prototype of a positron emission tomography system based on the resistive plate chamber (RPC) technology. The system is composed of two counting heads, each one containing 16 single-gap RPC detectors capable of detecting the photon interaction point in the transaxial plane. Uniformity studies were performed for image resolution and sensitivity, yielding a rather uniform image resolution close to 0.3 mm FWHM across the field of view. The contribution of the photons noncolinearity effect to the intrinsic spatial resolution was also studied, causing a variation from 0.52 to 0.63mm when the system diameter ranges from 60 to 120mm, in agreement with calculations. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：96 / 99
页数：4
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