Detector Identification in a 4i 4 BGO Crystal Array Coupled to Two Dual PMTS for High Resolution Positron Emission Tomography

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Abstract
A detector identification technique for a detector assembly in which sixteen BGO crystals are packed in a 4×4 array and coupled to two dual PMTs has been developed for high resolution and high sensitivity multilayer positron emission tomography. This allows dense packing of small BGO crystals which is essential to the achievement of high resolution not only in the transaxial plane but also in the axial direction. Experimental results on the timing and detector identification are presented.