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Method and apparatus for combinatorial logic signal processor in a digitally based high speed x-ray spectrometer

Patent ·
OSTI ID:872159
 [1];  [2]
  1. 1300 Mills St., Menlo Park, CA 94025
  2. Carl; Fremont, CA
+ Show Author Affiliations
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

References (7)

Digital pulse-shape analyzer based on fast sampling of an integrated charge pulse journal January 1995
Digital techniques for real-time pulse shaping in radiation measurements
  • Jordanov, Valentin T.; Knoll, Glenn F.; Huber, Alan C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 353, Issue 1-3 https://doi.org/10.1016/0168-9002(94)91652-7
journal December 1994
A new pulse height analysis system based on fast ADC digitizing technique journal August 1993
Improving EDS Performance with Digital Pulse Processing book January 1995
Development and testing of a flash analog-to-digital converter based system for pulse shape discrimination of nuclear radiation pulses journal October 1994
X‐ray signal processing electronics for solid state detectors journal February 1995
An analog-to-digital conversion based on a moving window deconvolution journal January 1994

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