Conference Paper

Further readout electronics development for the ISPA gamma camera

Universidade do Algarve, Фару, Faro, Portugal
DOI: 10.1109/NSSMIC.2003.1352364 Conference: Nuclear Science Symposium Conference Record, 2003 IEEE, Volume: 4
Source: IEEE Xplore

ABSTRACT

The ISPA (Imaging Silicon Pixel Array)-tube is a position sensitive photon detector based on the hybrid technology. It detects light via a photocathode and an appropriate electric field accelerates the emitted photoelectrons towards a silicon pixel anode. This anode, finely segmented into pixel detectors provides binary images and allows for the self-triggering of the tube. Coupled to scintillating crystals, ISPA-tubes have been successfully tested in the field of gamma ray imaging, demonstrating real capabilities in both space and energy resolution. Recently, we have concentrated our efforts on the development of a compact and portable readout system based on new electronics and able to provide full control and real-time processing of ISPA-tubes. The system overview and the dedicated interface are presented in this paper.

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    • "One of the major drawbacks of the previous system is its size and due to the tight requirements of compactness necessary to employ this detector in a Clinical Environment, a new readout system was designed. Details on the architecture and capabilities of this readout system have been recently reported [5]. "
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    ABSTRACT: A new readout system for hybrid photon detectors is being developed by the collaboration and has been operated for the first time to test the analog front-end. In order to test its performance we used the ISPA (Imaging Silicon Pixel Array)-tube, a position sensitive photon detector based on the hybrid technology which contains a pixel detector array with 2048 pixels of 50times500 mum<sup>2</sup> pitch. In this paper, we present the first successful application of this gamma camera prototype with a compact and portable readout system based on new electronics, able to provide full control and real-time data processing and analysis
    Full-text · Conference Paper · Nov 2004