Method and apparatus for color radiography, and color light emission sheet therefor
US6392248B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2004/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A color radiography system comprises a color light emission sheet having a phosphor layer that contains a phosphor emitting in a plurality of colors to radiation and emits light under irradiation of radiation transmitted through a subject to be inspected, and a color film or a color camera that detects the light emissions of the plurality of colors into the respective colors. In the phosphor layer, a phosphor is used that has a primary emission component corresponding to one emission color in a visible light region and at least one secondary emission component, the secondary emission component having an emission color different from that of the primary emission component and a ratio of light emission to radiation of the same intensity being different from that of the primary emission component. According to the present color radiography system, image information of a plurality of colors having different sensitivity characteristics can be obtained. The image information of an appropriate density can be obtained under various conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.