Apparatus for asymmetric dual-screen digital radiography
US7834321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Nov 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2004/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A radiographic imaging apparatus for taking X-ray images of an object includes a front panel and back panel. The panels have substrates, arrays of signal sensing elements and readout devices, and passivation layers. The front and back panels have scintillating phosphor layers responsive to X-rays passing through an object produce light which illuminates the signal sensing elements to provide signals representing X-ray images. The X-ray apparatus has means for combining the signals of the X-ray images to produce a composite X-ray image. Furthermore, the composition and thickness of the scintillating phosphor layers are selected, relative to each other, to improve the diagnostic efficacy of the composite X-ray image. Alternatively, a radiographic imaging apparatus has a single panel having arrays of signal sensing elements and readout devices and scintillating phosphor layers that are disposed on both sides of a single substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.