The AX-PET demonstrator-Design, construction and characterization

被引：32

作者：

Beltrame, P. ^{[2
]}

Bolle, E. ^{[7
]}

Braem, A. ^{[2
]}

Casella, C. ^{[1
]}

Chesi, E. ^{[5
]}

Clinthorne, N. ^{[6
]}

De Leo, R. ^{[4
]}

Dissertori, G. ^{[1
]}

Djambazov, L. ^{[1
]}

Fanti, V. ^{[2
]}

Heller, M. ^{[2
]}

Joram, C. ^{[2
]}

Kagan, H. ^{[5
]}

Lustermann, W. ^{[1
]}

Meddi, F. ^{[8
]}

Nappi, E. ^{[4
]}

Nessi-Tedaldi, F. ^{[1
]}

Oliver, J. F. ^{[3
]}

Pauss, F. ^{[1
]}

Rafecas, M. ^{[3
]}

Renker, D. ^{[1
]}

Rudge, A. ^{[5
]}

Schinzel, D. ^{[1
]}

Schneider, T. ^{[2
]}

Seguinot, J. ^{[5
]}

Solevi, P. ^{[3
]}

Stapnes, S. ^{[7
]}

Weilhammer, P. ^{[5
]}

机构：

[1] ETH, Inst Particle Phys, CH-8093 Zurich, Switzerland

[2] CERN, PH Dept, CH-1211 Geneva, Switzerland

[3] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain

[4] Ist Nazl Fis Nucl, Sez Bari, I-70122 Bari, Italy

[5] Ohio State Univ, Columbus, OH 43210 USA

[6] Univ Michigan, Ann Arbor, MI 48109 USA

[7] Univ Oslo, NO-0317 Oslo, Norway

[8] Univ Roma La Sapienza, I-00185 Rome, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 654卷 / 01期

关键词：

PET; Axial geometry; Geiger-mode Avalanche Photo Diodes (G-APD); SiPM; BRAIN; DETECTOR; SCANNER;

D O I：

10.1016/j.nima.2011.06.059

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Axial PET is a novel geometrical concept for Positron Emission Tomography (PET), based on layers of long scintillating crystals axially aligned with the bore axis. The axial coordinate is obtained from arrays of wavelength shifting (WLS) plastic strips placed orthogonally to the crystals. This article describes the design, construction and performance evaluation of a demonstrator set-up which consists of two identical detector modules, used in coincidence. Each module comprises 48 LYSO crystals of 100 mm length and 156 WLS strips. Crystals and strips are readout by Geiger-mode Avalanche Photo Diodes (G-APDs). The signals from the two modules are processed by fully analog front-end electronics and recorded in coincidence by a VME-based data acquisition system. Measurements with point-like Na-22 sources, with the modules used both individually and in coincidence mode, allowed for a complete performance evaluation up to the focal plane reconstruction of point sources. The results obtained are in good agreement with expectations and proved the set-up to be ready for the next evaluation phase with PET phantoms filled with radiotracers. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：546 / 559

页数：14

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