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- W3131039614 abstract "Abstract The crosshair light-sharing (CLS) PET detector is our original depth-of-interaction (DOI) detector, which is based on a single-ended readout scheme with quadrisected crystals comparable in size to a photo-sensor. In this work, we developed 32 CLS PET detectors, each of which consisted of a multi-pixel photon counter (MPPC) array and gadolinium fine aluminum garnet (GFAG) crystals, and we developed a benchtop prototype of a small animal size PET. Each GFAG crystal was 1.45 × 1.45 × 15 mm 3 . The MPPC had a surface area of 3.0 × 3.0 mm 2 . The benchtop prototype had two detector rings of 16 detector blocks. The ring diameter and axial field-of-view were 14.2 cm and 4.9 cm, respectively. The data acquisition system used was the PETsys silicon photomultiplier readout system. The continuous DOI information was binned into three DOI layers by applying a look-up-table to a 2D position histogram. Also, energy and timing information was corrected using DOI information. After the calibration procedure, the energy resolution and the coincidence time resolution were 14.6% and 531 ps, respectively. Imaging test results of a small rod phantom obtained by an iterative reconstruction method showed clear separation of 1.6 mm rods with the help of DOI information." @default.
- W3131039614 created "2021-03-01" @default.
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- W3131039614 date "2021-03-08" @default.
- W3131039614 modified "2023-09-30" @default.
- W3131039614 title "First imaging demonstration of a crosshair light-sharing PET detector" @default.
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- W3131039614 doi "https://doi.org/10.1088/1361-6560/abe839" @default.
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