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Initial results from the Sherbrooke avalanche photodiode positron tomograph

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8 Author(s)
Lecomte, R. ; Dept. of Nucl. Med. & Radiobiol., Sherbrooke Univ., Que., Canada ; Cadorette, J. ; Rodrigue, S. ; Lapointe, D.
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The design features and engineering constraints of a PET system based on avalanche photodiode (APD) detectors have been described in a previous report. Here, the authors present the initial results obtained with the Sherbrooke APD-PET scanner, a very high spatial resolution device designed for dynamic imaging of small and medium-sized laboratory animals such as rats, cats, rabbits and small monkeys. Its physical performance has been evaluated in terms of resolution, sensitivity, count rate, random and scatter fractions, contrast and relative activity recovery as a function of object size. The capabilities of the scanner for biomedical research applications have been demonstrated using phantom and animal studies

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Nuclear Science, IEEE Transactions on  (Volume:43 ,  Issue: 3 )