homework 6 review Flashcards
At what stage does the process of removing unexposed and undeveloped silver halide from the film emulsion occur?
fixing
The front or tube side of radiographic cassettes should be made of a material that ______________
absorbs very little of the x-ray beam
The greater the film speed, the (more/less) sensitive it is
more
The greater the film speed, the number of silver halide crystals (increases, decreases, stays the same)
increases
The intensifying screens convert the exit radiation intensities into
visible light
The radiation- and light-sensitive material used in the emulsion of radiographic film is called?
silver halide crystals
What is the correct sequence of film processing?
developing
fixing
washing
drying
What is the outermost, durable protection layer of radiographic film called?
supercoat
What is the purpose of the intensifying screen?
to reduce the amount of exposure to the patient
What is the term specifically used to emit visible light during x-ray exposure with little or no afterglow?
fluoresence
When a film has emulsion coated on both sides of the base versus one side of the base, the film is referred to as
double emulsion
Which layer of the intensifying screen is closest to the film and protects the phosphor?
protective layer
Which layer of the radiographic film contains crystals suspended in gelatin that serve as the latent imaging centers?
emulsion
Which of the following is a major limitation in film-screen imaging?
-increased dynamic range
-limited signal-to-noise ratio
-limited dynamic range
-need for high-resolution monitors
limited dynamic range
According to the Gurney-Mott theory, exposure of the silver bromide crystals in the film emulsion by light or x-ray photons creates the latent image and initiates the conversion process. What completes the conversion process and transforms the image into a permanent visible image?
chemical processing
