Radiographic elements for medical diagnostic imaging exhibiting improved speed-granularity characteristics
US5567580A · kind A · utility
8Cited by
15References
7Claims
0Family size
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Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/167
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain emulsion containing less than 5 mole percent iodide, based on silver. An improvement in speed in relation to granularity is obtained by the presence of tabular grains having {111} major faces, containing a maximum surface iodide concentration along their edges, and a lower iodide concentration within their corners than elsewhere along their edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.