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Energy Resolution
Statistical uncertainty of energy determination due
to limited light yield of scintillator crystal
Two methods for determination of energy resolution:
●
Single event
energy resolution
●
Coincidence
(i.e. both events) energy resolution
ESTRO Teaching Course Advanced Imaging: PET – Basic Principles
29
Energy spectra for
single photons for a
BGO PET system [2].
FWHM = 16.4/19.6/21.6%