Exam 12: Screen-Film Radiography

The main purpose of the gelatin emulsion in radiographic film is to _____.

Both the isotropic emission of light from screen phosphor crystals and the added reflective layer contribute to _____.

A phosphorescent material emits light _____.

The overcoat on radiographic film is a protective covering of _____.

A contaminant in the silver halide crystal creates the _____.

The intensification factor increases with increased _____.

Photon interactions free the electrons from _____ atoms in the silver halide crystal.

The layer of screen that lies closest to the film is the _____.

The light-emitting efficiency of the intensifying screen is improved by the _____.

An intensifying screen is an example of _____.

Crystals in film emulsion consist of _____ and _____.

A screen that emits light after an exposure terminates is exhibiting _____.

Film is made with double emulsion to enhance film _____.

Luminescent material emits light after its outer shell electrons are _____.

Latent image formation occurs during film _____.

The ability of an intensifying screen to absorb x-rays is called _____.

Image noise in increased with increased _____.

The intensification factor is the exposure required _____ divided by the exposure required _____.

High contrast film contains _____ silver halide crystals of _____ size.

Photon interactions in the emulsion occur with exposure to _____.