Afterglow DC-offset calibration in a nuclear imaging system

Details Afterglow DC-offset calibration in a nuclear imaging system Afterglow DC-offset calibration in a nuclear imaging system

2008-02-18

2008-12-09

Porta, David P (Department: 2884)

Radiant energy

Calibration or standardization methods

C250S363090

Reexamination Certificate

active

07462816

ABSTRACT:
Method and system are provided for calibrating a nuclear medical imaging apparatus for DC shift caused by gamma event afterglow pulses. Detector responses to weak and to high count rate radiation sources are compared with each other, and a zero correction value is incremented until the detector response is the same for the weak source and the high count rate source. The zero correction value is then stored as a static zero correction value, which multiplies a dynamic zero correction value obtained just prior to the occurrence of a gamma event, in order to remove the effects of DC shifts from the output energy signal Esum.

REFERENCES:
patent: 6403960 (2002-06-01), Wellnitz et al.
patent: 2004/0036025 (2004-02-01), Wong et al.

Affiliated with

Also associated with

Rating

Afterglow DC-offset calibration in a nuclear imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Afterglow DC-offset calibration in a nuclear imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Afterglow DC-offset calibration in a nuclear imaging system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4029517