RAD 165 Contrast Questions and Correct Answers

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RAD 165 Contrast Questions and
Correct Answers

Question: ________ is the difference between adjacent densities
Answer: Contrast


Question: What are the Two factors that allow detail
Answer: Density & Contrast


Question: ________is considered the controlling factor of contrast
Answer: kVp


Question: range of brightness as displayed on a monitor
Answer: Dynamic range


Question: What is window width?
Answer: the digital processing produces change in range of brightness
which is used to control contrast


Question: High Contrast
Answer: HIGH CONTRAST
Few shades of gray
Increased contrast
Low kVp
Short scale contrast
Short (narrow) dynamic range/window width


Question: Low Contrast
Answer: LOW CONTRAST
Many shades of gray

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Decreases contrast
High kVp
Long scale contrast
Large (wide) dynamic range/window width


Question: There is no such thing as ___________contrast
Answer: good


Question: _____contrast is more pleasing to the eye
Answer: High


Question: ____________is the number of useful visible densities
Answer: Scale of contrast


Question: The total range of density values recorded by the receptor
is________
Answer: physical contrast


Question: Total range of density values perceived by the human eye in
an image is____________
Answer: visible contrast


Question: Compression or expansion of range of visible densities can be
achieved by what 3 things?
Answer: change in D log E curve
adjustment to kVp
adjustment of window width


Question: Film contrast depends on what 4 factors?
Answer: intensifying screens
film density
D log E curve


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