Method and apparatus for unpiling pulses generated by piled-up scintillation events
US5210423A · kind A · utility
33Cited by
7References
11Claims
0Family size
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Inventor
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/17
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A signal containing piled-up pulses from a scintillation camera head is sampled at a high frequency. Samples are summed to provide a time-integration of pulses which are sampled. When pulses pile up, the tail of the first pulse can be determined by extrapolation, permitting the first pulse to be energy-validated. The overlapping tail of the first pulse and the head of the second pulse are also time-integrated, and the area of the tail of the first pulse is subtracted from the time-integration so obtained. It is then possible to validate the second pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.