Method and apparatus for alignment of anti-scatter grids for computed tomography detector arrays
US6778637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Oct 12, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4258
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation detector (30) for a computed tomography scanner (12) includes a support structure (62). An alignment board (60) secures to the support structure (62) and includes photolithographically defined alignment openings (70) arranged to define a spatial focal point (34) relative to the alignment board (60). An anti-scatter element (32) is disposed on the support element (62) and includes one or more protrusions (86) which mate with the alignment openings (70) of the alignment board (60) to align the anti-scatter element (32) with the spatial focal point (34). A detector board (104) includes alignment structures (106) that align the detector board (104) with the anti-scatter element (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.