AGFA

U. Ewert, Y. Onel, U. Zscherpel, J. Stade - BAM, Germany. P. Willems -Agfa Gevaert, Belgium. 

A new system from Agfa Gaevert which is under development for special NDT-... 

Exposures were detected at energies of 25 and 45 MeV for the home roentgen film types PT-1, PT-5 and import types D4, D7, Agfa-Gevaert , MX-5 Kodak . The lead strengthening screens were used for roentgen survey. Cassettes were loaded according to 2H3 scheme. In the experiments focal distances (F) came to 1.5, 2.0, and 3.0 m. 

P. Willems, B. Vaessen - Agfa Gevaert, Belgium. W. Hueck, VEBA 01, Germany. U. Ewert a.o., BAM, Berlin. 

As film we used AGFA Pb Vacupack D7 which was exposed using a portable Ir-192 source with an activity of ca. 50 Ci. The investigated tube diameters ranged between 40 mm and 80... 

The storage phosphor system was a design prototype developed by AGFA. It consisted of the following components ... 

The IP s were used in combination with appropriate Pb-filters (see 121). For wall thickness inspection we used standard medical IP s (AGFA MDIO), which exhibited an inherent unsharpness of ca. 310 pm. This should be compared with the inherent unsharpness of the film for an Ir-192 exposure which amounts 230 pm 111. For corrosion assessment we used IP prototypes with an inherent unsharpness < 230 pm. 

We used a SUN SPARCstation with commercially available image processing software (AGFA Mimosa and Musica). The images were treated for visual inspection applying the Musica algorithm full force /3/. 

Compatible with Agfa ecology growth path (when combined with NDT-S processor) Compatible with Agfa ecology growth path... 

To comply with existing and future legislation with respect to silver content in processor rinsing water, the approach developed by Agfa is threefold. 

It has been found that the contrast in film density caused by very small local variations in mass density of the concrete is considerable, e g. S D = 0.12 for a 6 mm diameter hole in a 250 mm thick concrete beam. The image quality provided by fine-grained films (Agfa Gaevert D7) was sufficient to distinguish the thin walls of a pre-stressing duct in a 750 mm thick concrete bridge slab. 

J. Gotze and O. Riester. Mitt. Forschungslab. Agfa Leverkusen Munchen, 1, 56 (1955) Oiem. Abstr.. 51, 7354. 

Digital Color Prepress, Agfa Prepress Education Resources, Mt. Prospect, lU., 1993. 

A. E. Karsh, "Agfa Shows System for Short Run Color," Seybold Keport on Publishing Systems, 23,13 (Oct. 1993). 

ITPAIS, the Image Technology Patent Information System was developed between 1975—1985 by Eastman Kodak Co., Agfa-Gevaert (Antwerp/Leverkusen), and Fuji Photo Film Co., Ltd., and encompasses selected patents and Hterature references related principally to the chemical aspects of image technology. Search terms used for this table were the same as in the previous edition, and the Derwent patent database was used for the search data presented here. 

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