FinalReview.txt

radiosensitive material that receives the remnant beam and forms an image of the body part

invisible image contained in film prior to processing

can be seen in film after processing

emits light only when stimulated

provides a dynamic (moving) image such as a patient swallowing barium sulfate.

decrease in useful beam as it is partially absorbed by body part

radiation remaining after passing through the body part – strikes the image receptor and forms the image

continues to emit light after stimulation

The purpose of intensifying screens is to ________________ the amount of exposure required to produce an

When using intensifying screens, _____% of the image is actually formed by light from the intensifying

Screen __________ refers to how efficiently the screen converts x-ray energy to light energy. As screen

Higher speed screens are made by using a thicker _________________ and an increase in __________ size.

A 100 speed screen is ___________(faster/slower) than a 400 speed screen. If 20 mAs is required using a 100 speed screen, __________ mAs is required using a 400 speed screen to produce an equal film density.

The ______________________ test is used to monitor screen film contact.

A layer of lead foil may be found in the back of a cassette to prevent _____________ from fogging the film.

Pairing a green-light emitting screen phosphor with a film sensitive to green light is termed _____________________.

__________________________ are unwanted marks or images appearing on a radiograph.

Film emulsion is composed of __________________________ suspended in _________________.

_____19. Using a higher speed screen and decreased mAs results in
A. Higher patient dose
B. Inadequate contrast
C. Greater radiographic detail
D. Increased Quantum mottle

Which of the following is NOT a purpose of the film cassette?
A. Provide support for intensifying screens
B. Prevent marks from scratching and bending of film
C. Restricts the x-ray beam to a certain area
D. Prevent light from exposing the film

Poor film-screen contact results in:
A. increased beam penetration
B. none of these
C. increased light leaks in the darkroom
D. reduced image detail

Refers to the property of a film which allows a large range of exposures that result in useful film density.

Refers to matching the color sensitivity of x-ray film to the color of light emitted by the intensifying screen.

Refers to the practice of using the oldest film on the shelf first.