Method and apparatus for providing pulse pile-up correction in charge quantizing radiation detection systems
A radiation detection method is described for continuously correcting the quantization of detected charge in a radiation detection system during pulse pile-up conditions, comprising the steps of: continuously converting radiation event pulses from a radiation detector to voltage pulses of a predetermined shape whose peak amplitudes are proportional to the quantity of charge of each corresponding detected event; sampling and storing the peak amplitudes of each of said voltage pulses in accordance with their respective times of occurrence; generating a correction factor signal for each of said voltage pulses based on the known response of said predetermined shape pulses whose amplitude represents a fraction of a previous pulse's amplitude corresponding to the previous pulse's influence on a following pulse's peak amplitude at the time of occurrence of said following pulse; and, subtracting said correction factor signal amplitude from said following pulse peak amplitude to obtain a corrected amplitude signal indicative of the charge quantity of the radiation event corresponding to said following pulse peak.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5225682; A
- Application Number:
- PPN: US 7-825225
- OSTI ID:
- 6189570
- Resource Relation:
- Patent File Date: 24 Jan 1992
- Country of Publication:
- United States
- Language:
- English
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