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Patent Searching and Data


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.
Beutel, Jacob Mcconnell Bob E.
Mickewich, Daniel James Russell Raymond J.
Application Number:
PCT/US1992/010003
Publication Date:
June 10, 1993
Filing Date:
November 25, 1992
Export Citation:
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Assignee:
I, E.
Du, Pont De Nemours And Company
International Classes:
C09K11/77; G03C1/00; G03C5/17; G21K4/00; (IPC1-7): G03C5/17; G21K4/00
Foreign References:
GB2119396A1983-11-16
DE3726647A11988-06-01
US5064729A1991-11-12
Other References:
See also references of EP 0568686A1
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