Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1993-10-27
1995-02-21
Neville, Thomas R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430502, 430567, 430139, 430966, 430571, 430509, G03C 146
Patent
active
053914694
ABSTRACT:
Radiographic elements are disclosed each containing a support and, coated on the support, at least two high tabularity tabular grain emulsions. The tabular grains coated on the support exhibit a face centered cubic crystal lattice structure formed by silver bromide with a selected portion of the tabular grains additionally containing iodide substantially uniformly distributed through the crystal lattice structure in an overall concentration of at least 0.5 mole percent with the iodide concentration at any one grain site being less than 5 mole percent. The proportion of the tabular grains selected to contain iodide as well as the distribution of iodide within the tabular grains results in a reduction in pressure induced variance of radiographic imaging response as a function of applied pressure, such as that inadvertently applied during film handling and processing.
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Eastman Kodak Company
Neville Thomas R.
Thomas Carl O.
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