Audio Overview:
Chapter 9: Intensifying Screens
Chapter 10: Film Characteristics, Quality and QC
These Chapters discuss intensifying screens and film characteristics in radiography. Intensifying screens significantly reduce patient radiation dose by converting x-rays to light that exposes the film, although this can decrease image quality by introducing quantum mottle and reducing spatial resolution. The document also outlines film composition, explaining how silver halide grains are affected by light to form a latent image that is revealed during film processing, which involves development, fixation, washing, and drying. Finally, it describes quality control measures for film processors using sensitometers and densitometers to monitor parameters like speed, contrast, and base plus fog levels, ensuring consistent film density and quality.
Radiologic Physics by Nickoloff, Edward L – Ahmad, Naveed.
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