Digital pulse processor slope correction

Details Digital pulse processor slope correction Digital pulse processor slope correction

2008-08-01

2011-10-18

Kim, Kiho (Department: 2884)

Radiant energy

Calibration or standardization methods

Reexamination Certificate

active

08039787

ABSTRACT:
A method of adjusting a response of an energy measuring filter, such as an FIR filter, of a pulse processor based on a slope of a preamplifier signal having a plurality of step edges each corresponding to a respective photon is provided that includes receiving a digital version of the preamplifier signal comprising a plurality of successive digital samples each having a digital value, the preamplifier signal having a portion defined by a first one of the step edges and a second one of the step edges immediately following the first one of the step edges, using the digital values of each of the digital samples associated with the portion to determine an average slope of the portion normalized by a length of the portion, and using the average slope of the portion normalized by a length of the portion to correct the response of the energy measuring filter.

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