Method and apparatus for combinatorial logic signal processor in a digitally based high speed x-ray spectrometer
- 1300 Mills St., Menlo Park, CA 94025
- Carl; Fremont, CA
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.
- Research Organization:
- X-RAY INSTRUMENTATION ASSOC
- DOE Contract Number:
- FG03-92ER81311
- Assignee:
- Warburton, William K. (Menlo Park, CA)
- Patent Number(s):
- US 5873054
- OSTI ID:
- 872159
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
apparatus
combinatorial
logic
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processor
digitally
based
speed
x-ray
spectrometer
processing
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extracts
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amplitudes
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pulse
pileup
records
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parallel
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trapezoidal
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energy
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peak
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input signal
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peak value
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time constant
pulse rate
parallel processing
count rates
speed x-ray
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pulse pileup
combinatorial logic
fast channel
easily integrated
parallel process
processing channels
digital process
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