Stable photosensor gain over temperature variation in positron emission tomography
US11474265B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Dec 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/208
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
For positron emission tomography (PET) detector gain stabilization despite temperature variation, an open loop gain control based on temperature establishes a baseline gain despite possible temperature variation. The baseline gain is then adjusted with a more sensitive closed-loop (e.g., peak tracking) approach for dealing with temperature. By combining both types of gain control to deal with temperature, the advantages of both are provided while avoiding disadvantages of either approach by itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.