Radiographic Film Characteristics

What are the desirable characteristics of the film base?

• Transparent, strong but flexible, impermeable to water

• Non-flammable, chemically inactive, uniform in color

• All of the above

What is the primary function of the gelatin in the emulsion layer?

• To provide a support medium for the silver halide crystals

• To transmit light to the silver halide crystals

• To protect the emulsion layer from damage

What does film speed refer to?

• The degree to which the emulsion is sensitive to x-ray or light

• The thickness of the film

• The color of the film

What is the characteristic curve in radiographic film?

• A graph relating optical density to exposure

• A method to measure film speed

• A type of film storage

What should be the relative humidity for a film storeroom?

• 30-65%

• 50-70%

• 20-40%

What are the main factors affecting film speed?

• Number and size of silver halide crystals

• Type of film

• Processing conditions

What is the purpose of the automatic smoke detector in the film storeroom?

• To prevent fire hazards

• To monitor humidity levels

• To control temperature

What is the effect of rough handling on radiographic film?

• It can cause bruising of emulsion and lead to artifacts

• It improves the quality of the film

• It has no effect on the film

What is the role of the protective layer in radiographic film?

• To shield the emulsion from physical damage

• To improve the film's color accuracy

• To enhance the film's sensitivity to light