2016_Imaging for Physicists

Basic principle of PET  Positron emitters (β+) used as biomarkers  Positron-electron annihilation  Two γ-quanta with 511 keV each are emitted under approx. 180 

 Coincidence detection in a detector ring

Radioactive Isotope

511 keV γ-quant

γ 1

β +

Electron

γ 2

511 keV γ-quant

PET

3

ESTRO Teaching Course Advanced Imaging: PET – Basic Principles