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

页码：96 / 99

页数：4

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