Emulsion Composition and Functions Quiz

What is the role of the adhesive layer in relation to the film?

Adheres the base to emulsion

What does the blue tint contribute to in the context of the film?

Decrease eye strain

What is the active ingredient of the emulsion used in the film?

Silver halide crystals

Which characteristic of the film base ensures that it must be nearly transparent to white light?

Lucency Signup and view all the answers

What is the purpose of the film base in radiography?

To prevent bending and provide support for the emulsion Signup and view all the answers

What is the role of radiography in producing an image?

Employing ionizing radiation to produce a recorded image Signup and view all the answers

Which characteristic of the film base ensures flexibility and sturdiness to prevent damage when handling and processing?

Superior physical stability Signup and view all the answers

What is the primary function of gelatin in the emulsion?

To swell during processing and allow chemicals to penetrate the silver halide crystals Signup and view all the answers

What is the size range of the silver halide crystals?

1.0 to 1.5 μm Signup and view all the answers

What is the primary purpose of the supercoat or topcoat in x-ray film?

To provide a durable protective layer for the sensitive emulsion Signup and view all the answers

What two primary factors affect the speed point of x-ray film?

The number and size of silver halide crystals Signup and view all the answers

For a PA chest examination requiring 120 kVp and 8 mAs with a 250-speed image receptor, what radiographic technique should be used with a 400-speed image receptor?

5 mAs Signup and view all the answers

What is the exposure required to produce an OD of 1.0 above base plus fog density on a 200-speed image receptor?

5 mR Signup and view all the answers

What does film latitude refer to in radiography?

The inherent characteristic of the film emulsion allowing a moderate range of densities to be recorded Signup and view all the answers

How does film latitude relate to contrast in radiography?

Wide film latitude increases contrast Signup and view all the answers

Emulsion Composition and Functions Quiz

Questions and Answers