Calibration process for improving Crystal Identification rate in the LabPET™ phoswich detectors

  title={Calibration process for improving Crystal Identification rate in the LabPET{\texttrademark} phoswich detectors},
  author={F. Lemieux and Nicolas Viscogliosi and Marc-Andr{\'e} T{\'e}trault and R{\'e}jean Fontaine and Roger Lecomte},
  journal={IEEE Nuclear Science Symposuim \& Medical Imaging Conference},
The LabPET™ is a small animal APD-based PET scanner using LYSO-LGSO phoswich detectors. A digital Crystal Identification (CI) method based on a Wiener filter, chosen for its low computation burden and low error rate, was implemented to localize the position of interaction in the phoswich. To facilitate its implementation, a unique Data AcQuisition (DAQ) model, in the Z-domain, was applied to every channel in the scanner, resulting in uneven CI error rates due to slight variations in detector… 
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