Method and apparatus for providing pulse pile-up correction in c

Details Method and apparatus for providing pulse pile-up correction in c Method and apparatus for providing pulse pile-up correction in c

1992-01-24

1993-07-06

Dzierzynski, Paul M.

Radiant energy

Invisible radiant energy responsive electric signalling

Methods

250369, G01T 117

Patent

active

052256820

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.

REFERENCES:
patent: 4535242 (1985-08-01), Dirkse et al.
Sippach, F. W., "An Analog Pipeline for Zeus", Nuclear Instruments and Methods in Physics Research A265 (1988), 321-325.
Buttler, W., et al., "Design and Performance of a 10MHz CMOS Analog Pipeline", Nuclear Instruments and Methods in Physics Research A277 (1989) 217-221.
Souchek, Branko, "Application of Pile Up Distortions", The Review of Scientific Instruments, vol. 36, No. 11, Nov. 1965.
Wintenberg, A. L., et al., "Considerations on the Design of Frontend Electronics for Silicon Calorimetry for the SSC", Proceedings of Simposium on Detector Research & Development for the SSC, pp. 508-510, Oct. 15-18, 1990.

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