Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2006-10-06
2009-06-23
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C250S252100
Reexamination Certificate
active
07552017
ABSTRACT:
A tailpulse signal generating/simulating apparatus, system, and method designed to produce electronic pulses which simulate tailpulses produced by a gamma radiation detector, including the pileup effect caused by the characteristic exponential decay of the detector pulses, and the random Poisson distribution pulse timing for radioactive materials. A digital signal process (DSP) is programmed and configured to produce digital values corresponding to pseudo-randomly selected pulse amplitudes and pseudo-randomly selected Poisson timing intervals of the tailpulses. Pulse amplitude values are exponentially decayed while outputting the digital value to a digital to analog converter (DAC). And pulse amplitudes of new pulses are added to decaying pulses to simulate the pileup effect for enhanced realism in the simulation.
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“A Random Tail Pulse Generator”, D.W. Burtis and D. Brown, IEEE Transactions on Nuclear Science, vol. 20 Issue 1, 1973.
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Archer Daniel E.
Baker John
Decman Daniel J.
Luke Stanley John
White Gregory K.
Bui Bryan
Lawrence Livermore National Security LLC
Lee John H.
Moffat Johnathan Teixeira
Tak James S.
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