A new method for post-acquisition correction of spectral distortion due to pulse pileup
- Geological Survey of Canada, Ottawa, ON (Canada)
The times between pulses generated by a radiation detector are known as the inter-arrival times. When the pulse amplitudes are sorted by an Analogue-to-Digital converter (ADC) to produce a radiation energy spectrum, a minimum inter-arrival time is required for the ADC to make an error-free conversion. This is dependent on the pulse shape and duration among other factors. When inter-arrival times are less than this minimum, either the event is recorded as a partial or total sum of two or more pulses, or one or more pulses are ignored altogether. The phenomenon of chance summing of pulses is known as pulse pileup and causes a distortion of the acquired spectrum which becomes more severe as the incoming count rate increases. An extensive analysis of the problem involving Monte Carlo Analyses are given in a previous paper. This paper is a sequel to the previous paper and demonstrates the application of the algorithm in the correction of high count rate spectra acquired from a 10 [times] 10 [times] 40 cm scintillation crystal for pulse pileup.
- OSTI ID:
- 6704117
- Report Number(s):
- CONF-911106-; CODEN: IETNAE
- Journal Information:
- IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 39:4; Conference: 1991 Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Santa Fe, NM (United States), 2-9 Nov 1991; ISSN 0018-9499
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ANALOG-TO-DIGITAL CONVERTERS
PULSE PILEUP
NUCLEAR PHYSICS
MEASURING INSTRUMENTS
RADIATION DETECTORS
COMPUTER CODES
COMPUTERIZED SIMULATION
ENERGY SPECTRA
MONTE CARLO METHOD
CALCULATION METHODS
ELECTRONIC EQUIPMENT
EQUIPMENT
PHYSICS
SIMULATION
SPECTRA
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
440104 - Radiation Instrumentation- High Energy Physics Instrumentation
990200 - Mathematics & Computers