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Detector Designs used in PET
One-to-one coupling:
•
Single crystals glued to individual
photo-detector
•
Spatial resolution limited by discrete
crystal size
Block detector design:
•
Rectangular scintillator
block sectioned by
partial saw cuts of
different depth into
discrete elements
•
Usually 4 attached PMTs
•
Anger positioning
ESTRO Teaching Course Advanced Imaging: PET – Basic Principles
16
Standard
block detector
design
scheme (from
[2])