Imaging for Physicists

Detector Designs used in PET

One-to-one coupling: •

Single crystals glued to individual photo-detector Spatial resolution limited by discrete crystal size

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Block detector design: •

Rectangular scintillator block sectioned by partial saw cuts of different depth into discrete elements Usually 4 attached PMTs

Standard block detector design scheme (from [2])

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Anger positioning

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ESTRO Teaching Course Advanced Imaging: PET – Basic Principles