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Silicon Photomultiplier Based TOF-PET Detector

  • US 20150285922A1
  • Filed: 04/03/2014
  • Published: 10/08/2015
  • Est. Priority Date: 04/03/2014
  • Status: Active Application
First Claim
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1. A scintillation detector, comprising:

  • an array of j×

    k silicon photomultipliers (SiPMs), where j and k are positive integers, mounted on a substrate;

    an array of m×

    n scintillator crystals, where m and n are positive integers, optically coupled to said array of SiPMs, whereinat least one of j and k are greater than 1,n is greater than or equal to j, andm is greater than or equal to k;

    at least a plurality of said scintillator crystals of said array being optically coupled to each other by an air gap;

    said array of scintillator crystals being wrapped by an external reflector;

    each of the SiPM cathode outputs being coupled to a common cathode output lead, and the anode outputs being coupled to individual anode output leads; and

    SiPM signal processing circuitry, includingscintillation event timing computation circuitry receiving a common cathode output signal from said common cathode output lead, and configured to compute timing of a scintillation event incident on said scintillator crystal array from said common cathode output signal; and

    scintillation event position and energy computation circuitry receiving individual anode output signals from said individual anode output leads, and configured to compute position and energy of said scintillation event incident on said scintillator crystal array from said individual anode output signals.

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