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Title: Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems

Abstract

A radiation detection method and system for continuously correcting the quantization of detected charge during pulse pile-up conditions. Charge pulses from a radiation detector responsive to the energy of detected radiation events are converted to voltage pulses of predetermined shape whose peak amplitudes are proportional to the quantity of charge of each corresponding detected event by means of a charge-sensitive preamplifier. These peak amplitudes are sampled and stored sequentially in accordance with their respective times of occurrence. Based on the stored peak amplitudes and times of occurrence, a correction factor is generated which represents the fraction of a previous pulses influence on a preceding pulse peak amplitude. This correction factor is subtracted from the following pulse amplitude in a summing amplifier whose output then represents the corrected charge quantity measurement.

Inventors:
 [1];  [2]
  1. (Alcoa, TN)
  2. (Knoxville, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
868845
Patent Number(s):
5225682
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; providing; pulse; pile-up; correction; charge; quantizing; radiation; detection; systems; continuously; correcting; quantization; detected; conditions; pulses; detector; responsive; energy; events; converted; voltage; predetermined; shape; peak; amplitudes; proportional; quantity; corresponding; event; means; charge-sensitive; preamplifier; sampled; stored; sequentially; accordance; respective; times; occurrence; based; factor; generated; represents; fraction; previous; influence; preceding; amplitude; subtracted; following; summing; amplifier; output; corrected; measurement; charge pulses; detection systems; correction factor; radiation events; detection method; voltage pulse; voltage pulses; radiation detector; radiation detection; pulse pile-up; sensitive preamplifier; peak amplitude; detected radiation; detected event; detector responsive; predetermined shape; radiation event; /250/

Citation Formats

Britton, Jr., Charles L., and Wintenberg, Alan L. Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems. United States: N. p., 1993. Web.
Britton, Jr., Charles L., & Wintenberg, Alan L. Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems. United States.
Britton, Jr., Charles L., and Wintenberg, Alan L. Fri . "Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems". United States. https://www.osti.gov/servlets/purl/868845.
@article{osti_868845,
title = {Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems},
author = {Britton, Jr., Charles L. and Wintenberg, Alan L.},
abstractNote = {A radiation detection method and system for continuously correcting the quantization of detected charge during pulse pile-up conditions. Charge pulses from a radiation detector responsive to the energy of detected radiation events are converted to voltage pulses of predetermined shape whose peak amplitudes are proportional to the quantity of charge of each corresponding detected event by means of a charge-sensitive preamplifier. These peak amplitudes are sampled and stored sequentially in accordance with their respective times of occurrence. Based on the stored peak amplitudes and times of occurrence, a correction factor is generated which represents the fraction of a previous pulses influence on a preceding pulse peak amplitude. This correction factor is subtracted from the following pulse amplitude in a summing amplifier whose output then represents the corrected charge quantity measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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