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:
-
- (Alcoa, TN)
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 868845
- Patent Number(s):
- 5225682
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- 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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