Title:
RADIOGRAPHIC SYSTEM WITH IMPROVED IMAGE QUALITY
Document Type and Number:
WIPO Patent Application WO/1993/011457
Kind Code:
A1
Abstract:
A wide latitude, high resolution radiographic system having a relative speed of at least 150 and a contrast transfer function of at least 0.30 when measured at 6 line pairs per millimeter, comprises at least one X-ray intensifying screen in operative association with a photosensitive silver halide element having a maximum contrast of less than or equal to 3.0 produces superior images, particularly chest images over a wide range of exposures, without the decrease in image quality or contrast normally seen in wide latitude systems.
Inventors:
APPLE BERNARD A (US)
BEUTEL JACOB (US)
MCCONNELL BOB E (US)
MICKEWICH DANIEL JAMES (US)
RUSSELL RAYMOND J (US)
BEUTEL JACOB (US)
MCCONNELL BOB E (US)
MICKEWICH DANIEL JAMES (US)
RUSSELL RAYMOND J (US)
Application Number:
PCT/US1992/010003
Publication Date:
June 10, 1993
Filing Date:
November 25, 1992
Export Citation:
Assignee:
DU PONT (US)
International Classes:
C09K11/77; G03C1/00; G03C5/17; G21K4/00; (IPC1-7): G03C5/17; G21K4/00
Foreign References:
| GB2119396A | 1983-11-16 | |||
| DE3726647A1 | 1988-06-01 | |||
| US5064729A | 1991-11-12 |
Other References:
See also references of EP 0568686A1
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