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Authors: R. Bugalho 1 ; B. Carriço 1 ; C. S. Ferreira 1 ; M. Ferreira 1 ; R. Moura 2 ; C. Ortigão 2 ; J. Pinheiro 1 ; P. Rodrigues 1 ; J. C. Silva 1 ; A. Trindade 2 and J. Varela 3

Affiliations: 1 IP - Laboratório de Instrumentação e Física Experimental de Partículas, Portugal ; 2 LIP - Laboratório de Instrumentação e Física Experimental de Partículas, Portugal ; 3 LIP - Laboratório de Instrumentação e Física Experimental de Partículas, IST- Instituto Superior Técnico, Portugal

ISBN: 978-989-8111- 64-7

ISSN: 2184-4305

Keyword(s): Avalanche photodiode, Dark current, Gain, Positron emission mammography, Quality control.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Equipment ; Biomedical Instrumentation ; Biomedical Instruments and Devices ; Biomedical Sensors ; Embedded Signal Processing ; Emerging Technologies ; Telecommunications ; Wireless and Mobile Technologies ; Wireless Information Networks and Systems

Abstract: A high-resolution Positron Emission Tomography (PET) scanner prototype, named Clear-PEM, was developed by the Portuguese PET Consortium in the framework of the Crystal Clear Collaboration (CCC). This scanner is a PET prototype dedicated for breast cancer imaging mammography, based on a novel readout scheme constituted by fine-pitch scintillator crystals, avalanche photodiodes (APD), low-noise high-gain frontend amplifiers and a reconfigurable FPGA-based electronics readout system. The Clear-PEM scanner is designed to exam both the breast and the auxiliary lymph node areas, aiming at the detection of tumours down to 2 mm in diameter. The prototype has two planar detector heads, each composed of 96 detector modules. Each detector module is composed of a matrix of 32 identical 2x2x20 mm3 LYSO:Ce scintillator crystals, read at both ends by Hamamatsu S8550 APD arrays (4x8) for Depth-of-Interaction (DOI) capability. The APD arrays were characterized through the measurement of gain and dark current as a function of bias voltage, under controlled conditions. A set of 984 APD arrays followed a well defined quality control (QC) protocol, aiming at the rejection of arrays not complying with the defined specifications. From the total of 984, only 1 (0.1%) was rejected, reassuring the trust in these detectors for prototype assembly and future applications. (More)

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Paper citation in several formats:
Bugalho, R.; Carriço, B.; S. Ferreira, C.; Ferreira, M.; Moura, R.; Ortigão, C.; Pinheiro, J.; Rodrigues, P.; C. Silva, J.; Trindade, A. and Varela, J. (2009). AVALANCHE PHOTODIODES FOR HIGH-RESOLUTION PET IMAGING SYSTEMS. In Proceedings of the International Conference on Biomedical Electronics and Devices - BIODEVICES, (BIOSTEC 2009) ISBN 978-989-8111- 64-7; ISSN 2184-4305, pages 31-38. DOI: 10.5220/0001432900310038

@conference{biodevices09,
author={R. Bugalho. and B. Carri\c{C}o. and C. {S. Ferreira}. and M. Ferreira. and R. Moura. and C. Ortigão. and J. Pinheiro. and P. Rodrigues. and J. {C. Silva}. and A. Trindade. and J. Varela.},
title={AVALANCHE PHOTODIODES FOR HIGH-RESOLUTION PET IMAGING SYSTEMS},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - BIODEVICES, (BIOSTEC 2009)},
year={2009},
pages={31-38},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001432900310038},
isbn={978-989-8111- 64-7},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices - BIODEVICES, (BIOSTEC 2009)
TI - AVALANCHE PHOTODIODES FOR HIGH-RESOLUTION PET IMAGING SYSTEMS
SN - 978-989-8111- 64-7
IS - 2184-4305
AU - Bugalho, R.
AU - Carriço, B.
AU - S. Ferreira, C.
AU - Ferreira, M.
AU - Moura, R.
AU - Ortigão, C.
AU - Pinheiro, J.
AU - Rodrigues, P.
AU - C. Silva, J.
AU - Trindade, A.
AU - Varela, J.
PY - 2009
SP - 31
EP - 38
DO - 10.5220/0001432900310038

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