Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 12
SWGTC-R/T-Chapter 12-Wallace-Radiographic Film and Development
| Question | Answer |
|---|---|
| Radiographic film is composed of two main parts, the __________and __________. | base and emulsion |
| The base of the film is made of ____________that is .007 inches thick. | polyester |
| Able to keep its size and shape under all processing conditions. | dimensional stability |
| Added to the base to absorb light from the view box and enhance radiographic contrast. | blue tint |
| Gelatin substance spread on the base | emulsion |
| The emulsion consists of ______________. | silver bromide suspended in a gelatin |
| Emulsion spread on just one side of the base. | single-emulsion film |
| Emulsion spread on both sides of the base. | double-emulsion film |
| One layer of emulsion is ________ thick. | .0005 inch |
| Gelatin property that suspends crystals. | colloid |
| List the layers of a double-emulsion film from front to back. | supercoating, emulsion, adhesive, base, adhesive, emulsion, supercoating |
| Most common type of film. | screen film |
| Screen film is sensitive to both _________ and __________. | light and x-rays |
| Screen film is used with _____________ screen. | intensifying |
| Non-screen film is more sensitive to _______ than to ___________, causing the patient dose to be ________. | x-rays, light, greater |
| Mammography uses ___________ emulsion film. | single |
| __________ film is used to view the arteries better in Special Procedures. | subtraction film |
| Film is developed in about __________ seconds in an automatic processor. | 45-90 |
| Inside the processor, the film passes through a __________chemical, a __________ chemical, the _____ and a _______. | developer, fixer, wash, dryer |
| The developer chemical is an __________ solution. | alkaline |
| The section of the processor where the exposed silver bromide crystals are reduced to metallic silver. | developer |
| The image on the film after exposure and before development. | latent |
| Excess density | fog |
| ___________ temperature affects density and contrast. | developer |
| The _________ removes the unexposed and underdeveloped silver bromide crystals. | fixer |
| When developer temp increases and density increases, fog _______. | increases |
| When developer temp and density decrease, fog ___________. | remains the same. |
| Film travels between 2 sets of rollers that are ___________ to each other. | offset |
| _________rollers are at the bottom of each section and ________ rollers are at the top of each section. | turnaround, crossover |
| The rollers have metal guides called _________ that help the film make the turns. | guide shoes |
| What does the characteristic curve tell a radiographer? | info about a film's speed, contrast, and exposure latitude, and enables monitoring of the function of the automatic processor |
| stepwedge | penetrometer |
| The toe of the characteristic curve is the area of _____________. | underexposure |
| The _______ is the area of the characteristic curve where it begins to turn upward. | threshold |
| The shoulder is at the top of the curve and is the area of ___________. | overexposure |
| Density differences. | Film contrast |
Created by:
kristinalyn
Popular Radiology sets