Radiation image read-out apparatus, radiation image recording method and apparatus, stimulable phosphor sheet, and cassette
US5357118A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1994 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Apr 4, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2004/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a radiation image read-out apparatus, a phosphor sheet (70), represented by the formula Gd.sub.2 O.sub.2 S:Tb.sup.3+, is located facing a stimulable phosphor sheet (10) in such a manner that when it is exposed to x-rays (44) it produces fluorescence (71) having a wavelength that fall within the stimulation wavelength range of the stimulable phosphor. When the stimulable phosphor sheet (10) is exposed to the fluorescence (71), part of the energy stored on the layer of stimulable phosphor during its exposure to the x-rays (44) is released. In this manner, the stimulable phosphor sheet (10) is approximately simultaneously subjected to the operation for recording the radiation image and the operation for slightly erasing the energy store thereon during its exposure to the x-rays (44).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.