What types of streaks are produced on a finished radiograph as a result of development/processing?

The types of streaks produced on a finished radiograph primarily relate to the layers of emulsified silver halides that are developed and processed. During development, exposed silver halide crystals in the film emulsion are reduced to metallic silver, which appears as black areas on the radiograph. If there are any inconsistencies during processing—such as uneven chemistry distribution, agitation, or exposure to light before development—these can manifest as streaks of varying intensity, primarily in shades of black or metallic silver.

The black metallic streaks result from areas of the film that were either more or less exposed to radiation, leading to variations in density on the final image. Additionally, the presence of developing chemicals can alter the appearance, favoring the formation of these black streaks.

Other options like red, blue, green do not correspond to the chemistry and physical properties of processed radiographs. Transparent, opaque, reflective, and flat, shiny, dull do not accurately define the optical characteristics related to the silver halide processing either. Understanding these concepts is crucial for those working in radiographic imaging, so one can effectively interpret and troubleshoot issues in the final product.