Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Patent
1996-08-02
1999-02-16
Barlow, John
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
702 22, 702 27, 2503706, 378 91, G01N 2300, G06F 1900
Patent
active
058730540
ABSTRACT:
A high speed, digitally based, signal processing system which accepts a digitized input signal and detects the presence of step-like pulses in the this data stream, extracts filtered estimates of their amplitudes, inspects for pulse pileup, and records input pulse rates and system livetime. The system has two parallel processing channels: a slow channel, which filters the data stream with a long time constant trapezoidal filter for good energy resolution; and a fast channel which filters the data stream with a short time constant trapezoidal filter, detects pulses, inspects for pileups, and captures peak values from the slow channel for good events. The presence of a simple digital interface allows the system to be easily integrated with a digital processor to produce accurate spectra at high count rates and allow all spectrometer functions to be fully automated. Because the method is digitally based, it allows pulses to be binned based on time related values, as well as on their amplitudes, if desired.
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Warburton William K.
Zhou Zhiquing (Carl)
Barlow John
Bui Bryan
Warburton William K.
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