Dark Room Procedures

Dark Room Procedures :photographic materials,latent image.image produced by radiation.light sensitive image. Film Material :The structure of X.ray films.resolving power- graininess of film.sensitivity of film.speed of film.contrait of film and types of film. Sensitivity :Characteristic curve and its usefulness. X - Ray Film Storage :Storage of unexposed films. Screens : construction of intensifying screens. choice of fl uorescent material.intensifying factor detail Sharpness,speed,screen contact,care of intensifying screens and type ofscreens. cassettes :cassettes design and care of cassettes.Mountins of intensifying screens in the cassettes. Film Processing :consitutions of the processing solution and replenisher.Factors affecting the developer type of developer and fixer.factors affecting the use of the fixer,silvei recovery method. Film Rinsing washing and Drying :Intermediate rinse. washins and drying of films. Film processing Equipment :Manual dnd automatic processing. Dark Room Design :Layout and material used The radiographic image :The sharpness, contrast detail definition.viewing conditions. Administration :Trimming, identification of film legends,relevant papers of the patients.records filling,Report distribution. Dark Room Process :Light proof with colour.ventilation and temperature.maintenance.Technical and processing fi lm faults. Fog static pressure and sthtic currents. Artefacis of different types. Darkroom illuminations, orientation of laser cameras.