Scintillation camera utilizing energy dependent linearity correction
US5345082A · kind A · utility
18Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 22, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Mar 22, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4258
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scintillation camera is provided with multiple linearity correction maps which are accessed as a function of the value of the energy of a detected radiation event, so as to separately correct for spatial dislocation errors in multiple energy ranges as a function of detected position. The correction maps may be obtained by direct measurement of nonlinearities for each of the desired energy ranges individually, or sets of corrections for some energy ranges may be obtained by extrapolation calculation from correction factors which have been obtained by direct measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.