Radiation image read-out method and apparatus
US4496973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Nov 24, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/167
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In a radiation image read-out system in which a stimulable phosphor sheet carrying a radiation image stored thereon is exposed to stimulating rays which causes it to emit light in the pattern of the stored image, and the emitted light is photoelectrically read out, the phosphor sheet is uniformly desensitized by the exposure thereof to stimulating rays. Then, preliminary read-out is conducted by use of stimulating rays having stimulation energy lower than the stimulation energy of stimulating rays used in final read-out, and the final read-out conditions and the image processing conditions are set based on the image input information obtained by the preliminary read-out. The desensitization is conducted to eliminate 3% to 60% of the radiation energy stored on the phosphor sheet in order to obtain the image input information suitable for setting the conditions regardless of the interval between the radiation image recording and the preliminary read-out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.