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:
-
- 1300 Mills St., Menlo Park, CA 94025
- 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 = {Tue Jul 01 00:00:00 EDT 2003},
month = {Tue Jul 01 00:00:00 EDT 2003}
}
Works referenced in this record:
Trapezoidal Filtering of Signals from Large Germanium Detectors at High Rates
journal, January 1972
- Radeka, V.
- IEEE Transactions on Nuclear Science, Vol. 19, Issue 1
Pulse Shape and Risetime Distribution Calculations for HPGe Coaxial Detectors
journal, January 1982
- Raudorf, T. W.; Bedwell, M. O.; Paulus, T. J.
- IEEE Transactions on Nuclear Science, Vol. 29, Issue 1
Using pulse shape discrimination to sort individual energy deposition events in a germanium crystal
journal, July 1998
- Aalseth, C. E.; Avignone, F. T.; Brodzinski, R. L.
- Journal of Radioanalytical and Nuclear Chemistry, Vol. 233, Issue 1-2
Pulse processing for gamma ray spectrometry-a novel method and its implementation
journal, January 1988
- White, G.
- IEEE Transactions on Nuclear Science, Vol. 35, Issue 1
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
Ballistic deficit correction in semiconductor detector spectrometers
journal, February 1988
- Goulding, F. S.; Landis, D. A.
- IEEE Transactions on Nuclear Science, Vol. 35, Issue 1
A multi-parametric waveform analysis of Ge detector signal based on fast ADC digitizing technique
journal, January 1994
- Takahashi, H.; Kinjoh, S.; Kawarabayashi, J.
- IEEE Transactions on Nuclear Science, Vol. 41, Issue 4