Scanning gamma camera
US4432059A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1980 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Sep 3, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/922
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
By reason of the nature of the scanning regimen followed by a scanning gamma camera head, and the shape of the active region of the head, not all of the elemental areas of a scanned radiation field are observed by the active region of the head for the same period of time. This non-uniformity sensitivity of the system is corrected by correction factors that are either analytically calculated or experimentally determined for each given elemental area of the map. The map of an unknown radiation source obtained by following the scanning regimen is corrected by applying the sensitivity correction factors to the contents of corresponding elemental areas of the map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.