2017 Imaging for Physicists Coursebook
Prompt Events (II)
Scattered events ●
One or both photons detected have undergone a Compton interaction Loss in energy and change in direction
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Due to poor energy resolution, many scattered photons cannot be discriminated ● Wrong LOR assigned Multiple (triple) events ● Three events from two annihilations detected ● Event is disregarded ● Proportional to count rate
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ESTRO Teaching Course Advanced Imaging: PET – Basic Principles
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