High performance CT reflector for a scintillator array and method for making same
US7164134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2002
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus and method for fabricating a high performance reflective material for use on scintillator elements in a computed tomograph (CT) imaging device. Adjacent scintillator elements are separated by gaps filled with a reflective coating layer. In one embodiment, the reflective coating layer consists of a surface level coating layer, an adhesion layer, a metallic reflective layer, and a top layer consisting of either a barrier coating layer or a polymeric encapsulant, or both. In another embodiment, the metallic reflective coating layer is applied to the scintillator element via an electroless metal deposition process utilizing a reducing agent and a metal complex. The CT reflectors formed by either embodiment have improved light output, minimized cross talk, higher geometric efficiency, and decreased performance degradation as compared with current CT reflectors that utilize organic binders and titanium dioxide fillers is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.