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VET 246 Week 3
Processing The Image
| Question | Answer |
|---|---|
| __ of all artifacts occur during processing. | 95% |
| Amber safelights will fog ___ film | green |
| Legal identifiers for film | Patient name Owner name Date Vet Facility Name |
| First step in processing | immersed in developer |
| Second step in processing | Immersed in fixer |
| Final step in processing | Washing/rinsing |
| Film must be completely ___ before viewing | dried |
| Developer fog | Developer becomes too warm and exposes the undeveloped silver halide |
| Optimized temperature for developer is ____ F | 68 |
| Fixer | Removes the unexposed silver halide from the emulsion and film base and ensures that the manifest image remains intact and permanent |
| Washing | necessary to preserve the quality for a long time |
| If not washed properly, the film will eventually change ___ and ___ or will fade. | colors, stain |
| Fixer contains a high concentration of ___ | silver |
| Low amounts of film fog | Obscures the resolution of the image |
| High amounts of film fog | Obscures the resolution of the entire image |
| Very high amounts of film fog. | Reversal of the image |
| Fixer retention | Caused by improperly fixed and/or washed film |
| Drying artifacts can only be seen with ________ light | reflected |
| Processor scratches | AKA Pi lines Caused by loose or worn gears Vertical lines are caused by guide shoes |
| Scattered and secondary radiation artifacts | fog the film |
| Extra focal radiation artifacts | appears as fog but in a uniform pattern |
| Grid artifacts | Appear as unusual "lines" |
| Static | Artifact caused by low humidity in darkroom |
| Screen deterioration | Raised "pinpoints" of emulsion desensitize the film and destroy the latent image |