Patent ID: 8969814
Filing Date: 2015-03-03
Classification: G01T,H03K

Abstract:
1. A method of generating timing triggers to determine timing resolutions of gamma events for nuclear imaging, the method comprising: receiving a pulse signature representing a sum of pulses each produced in response to an incident photon from a scintillation detector; comparing the pulse signature to a predetermined threshold event trigger level; generating an event trigger signal when it is determined that the pulse signature exceeds the threshold event trigger level; generating a delayed version of the pulse signature; comparing the delayed version of the pulse signature to a predetermined timing trigger level; generating a timing trigger level signal when it is determined that the delayed pulse signature exceeds the predetermined timing trigger level; and generating an event timing trigger identifying timing of the pulse signature that corresponds to a gamma event, in response to the generation of both said event trigger signal and said timing trigger level signal wherein said event trigger signal level is higher than said timing trigger level signal.