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Title: Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources

Abstract

A method and apparatus for processing step-like output signals generated by non-ideal, nominally single-pole ("N-1P") devices responding to possibly time-varying, pulse-like input signals of finite duration, wherein the goal is to recover the integrated areas of the input signals. Particular applications include processing step-like signals generated by detector systems in response to absorbed radiation or particles and, more particularly, to digitally processing such step-like signals in high resolution, high rate gamma ray (.gamma.-ray) spectrometers with resistive feedback preamplifiers connected to large volume germanium detectors. Superconducting bolometers can be similarly treated. The method comprises attaching a set of one or more filters to the device's (e.g., preamplifier's) output, capturing a correlated multiple output sample from the filter set in response to a detected event, and forming a weighted sum of the sample values to accurately recover the total area (e.g., charge) of the detected event.

Inventors:
 [1];  [2]
  1. 1300 Mills St., Menlo Park, CA 94025
  2. San Francisco, CA
Issue Date:
Research Org.:
X-RAY INSTRUMENTATION ASSOC
OSTI Identifier:
879663
Patent Number(s):
6587814
Application Number:
09/643705
Assignee:
Warburton; William K. (Menlo Park, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
FG03-97ER82510
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Warburton, William K, and Momayezi, Michael. Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources. United States: N. p., 2003. Web.
Warburton, William K, & Momayezi, Michael. Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources. United States.
Warburton, William K, and Momayezi, Michael. Tue . "Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources". United States. https://www.osti.gov/servlets/purl/879663.
@article{osti_879663,
title = {Method And Aparatus For Improving Resolution In Spectrometers Processing Output Steps From Non-Ideal Signal Sources},
author = {Warburton, William K and Momayezi, Michael},
abstractNote = {A method and apparatus for processing step-like output signals generated by non-ideal, nominally single-pole ("N-1P") devices responding to possibly time-varying, pulse-like input signals of finite duration, wherein the goal is to recover the integrated areas of the input signals. Particular applications include processing step-like signals generated by detector systems in response to absorbed radiation or particles and, more particularly, to digitally processing such step-like signals in high resolution, high rate gamma ray (.gamma.-ray) spectrometers with resistive feedback preamplifiers connected to large volume germanium detectors. Superconducting bolometers can be similarly treated. The method comprises attaching a set of one or more filters to the device's (e.g., preamplifier's) output, capturing a correlated multiple output sample from the filter set in response to a detected event, and forming a weighted sum of the sample values to accurately recover the total area (e.g., charge) of the detected event.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {7}
}

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Works referenced in this record:

Trapezoidal Filtering of Signals from Large Germanium Detectors at High Rates
journal, January 1972


Pulse Shape and Risetime Distribution Calculations for HPGe Coaxial Detectors
journal, January 1982


Using pulse shape discrimination to sort individual energy deposition events in a germanium crystal
journal, July 1998


Pulse processing for gamma ray spectrometry-a novel method and its implementation
journal, January 1988


Design and performance of the ASTRO-E/XRS microcalorimeter array and anticoincidence detector
conference, October 1999

  • Stahle, Caroline K.; Audley, Michael D.; Boyce, Kevin R.
  • SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings
  • https://doi.org/10.1117/12.366494

Ballistic deficit correction in semiconductor detector spectrometers
journal, February 1988


A multi-parametric waveform analysis of Ge detector signal based on fast ADC digitizing technique
journal, January 1994