(19) |
 |
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(11) |
EP 1 195 642 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
24.04.2002 Bulletin 2002/17 |
(43) |
Date of publication A2: |
|
10.04.2002 Bulletin 2002/15 |
(22) |
Date of filing: 14.09.2001 |
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(84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
(30) |
Priority: |
04.10.2000 EP 00203438
|
(71) |
Applicant: AGFA-GEVAERT |
|
2640 Mortsel (BE) |
|
(72) |
Inventors: |
|
- Van den Zegel, Marc c/o Agfa-Gevaert
2640 Mortsel (BE)
- De Vester, Marleen c/o Agfa Gevaert
2640 Mortsel (BE)
|
|
|
|
(54) |
Silver halide photographic material and image-forming system in direct X-ray imaging
applications |
(57) A direct X-ray radiographic element has been disclosed and a system for direct X-ray
radiography comprised of said element, wherein said element is comprised of a support
covered on at least one of its major faces with a tabular grain emulsion layer free
from spectrally sensitizing dyes in which at least 50 percent of total grain projected
area is accounted for by silver bromo(chloro)iodide tabular grains having an iodide
content of at most 1 mole %, based on silver, having an average aspect ratio between
5 and 25, and having a volume between 0,05 and 2µm
3, wherein a silver content per coded side, expressed as an equivalent amount of silver
nitrate is between 5 and 25 g/m
2, and further, being disposed on opposite sides of the radiographic element, two intensifying
(metal) screens designed to emit electrons when exposed to X or gamma rays with an
energy greater than or equal to 10kVp, characterized in that said tabular grain emulsion(s)
have selenium in an amount of 0.5to 20µmole of selenium per mole of silver nitrate.