Imaging for Physicists

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

FWHM = 16.4/19.6/21.6%

Energy spectra for single photons for a BGO PET system [2].

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ESTRO Teaching Course Advanced Imaging: PET – Basic Principles