Gamma camera having partial septas and moving septas for positron emission tomography (PET)
US5602395A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1995 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Oct 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1642
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A gamma camera for a Positron Emission Tomography (PET) system comprises a single, continvous scintillation crystal having an imaging surface, and a first layer of septa disposed along the imaging surface between the object and the imaging surface. A gap is provided between the imaging surface and the first layer of septa to allow non stray radiation to reach the imaging surface. The septa may be arranged to have a long axis disposed at an acute angle away from perpendicular to an axis of rotation or made to move in relation to the imaging surface of the scintillation crystal to reduce cold spots on the image. Multiple layers of septa may be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.