• Libraries
    • Log in to:
    View Item 
    •   MSpace Home
    • Faculty of Graduate Studies (Electronic Theses and Practica)
    • FGS - Electronic Theses and Practica
    • View Item
    •   MSpace Home
    • Faculty of Graduate Studies (Electronic Theses and Practica)
    • FGS - Electronic Theses and Practica
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Towards a next-generation preclinical PET/MR insert with improved timing and count rate performance

    Thumbnail
    View/Open
    Main Article (38.83Mb)
    Published work which Chapter 4 is based on, reproduced with permission from PMB (1.064Mb)
    Date
    2018-08
    Author
    Van Elburg, Devin
    Metadata
    Show full item record
    Abstract
    Our group has previously developed a PET insert for simultaneous PET/MRI imaging. The insert consists of silicon photomultipliers (SiPMs) with a resistor-based charge division multiplexing readout circuit. Some limitations include a 2.5ns coincidence time resolution (CTR), a relatively long signal duration of >1.5us, and a 1.3us paralyzable dead time. This thesis focuses on characterizing these limitations and demonstrating a second-generation detector module for improved timing and count rate performance. First, optical coupling optimization using acrylic polymer tapes versus conventional silicone optical grease was investigated. Second, CTR and signal duration was reduced by using an enhanced readout board equipped with three new SiPM-type detectors. Last, dead time of the system was reduced by minimizing the sampling number of the OpenPET acquisition system. Future work includes design modification to accommodate the first-generation scintillator footprint and potentially to adapt the OpenPET acquisition system to read in SiPM `fast' outputs.
    URI
    http://hdl.handle.net/1993/33221
    Collections
    • FGS - Electronic Theses and Practica [25529]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of MSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    Statistics

    View Usage Statistics

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV