ARRT radiology exam 3 || all solved.
high kVp / kilovoltage correct answers interaction between the x ray photons and matter as
illustrated in Figure 4 - 22 is most likely to be associated with
picture page 220
The higher the ________the greater the exposure latitude / margin of error in exposure
M
A.kilovoltage range
ED
B.mAs range
C.grid range correct answers A.kilovoltage range
ST
U
Bushong 9th edition page 256 - 257
D
Higher _______ produces more energetic photons, is more penetrating, and produces more grays
Y
on a radiographic image, lengthening the scale of contrasts.
A.kilovoltage
B.mAs
C.grid correct answers A.kilovoltage
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Bushong 9th edition page 256 - 257
As kilovoltage increases, the percentage of scattered radiation also increases
A.kilovoltage
B.mAs
C.grid correct answers A.kilovoltage
M
ED
Bushong 9th edition page 256 - 257
Differences inadjacent densities on the image.
ST
High _______: Few shades of gray, short scale (low kvp)
Low ________: Many shades of gray, long scale (high kvp)
Factors affecting: grids, beam restriction, filtration, anatomy, pathology correct answers Contrast
U
The active portion of a CR IP is(are):
D
a. Calcium tungstate
b. PSP
Y
c. Silver bromide crystals
d. Rare earth phosphor correct answers b. PSP
photo stimulated phosphor
Mosby's Comprehensive Review of Radiography: The Complete Study Guide and ...
By William J. Callaway
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one of the biggest advantages of CR/DR is the _______ it offers
a. latitude
b. longitude
c. Silver bromide crystals
d. Rare earth phosphor correct answers a. latitude
M
also known as exposure latitude
ED
Shepherd page 332
ST
With CR/DR this affords a much greater exposure latitude and technical inaccuracies can be
effectively eliminated. Over exposures of up to _______ percent and under exposures of up to
_____ PERCENT are reported as recoverable thus eliminating most retakes
U
A.
B.
D
C.50/50
D. correct answers A. percent
Y
Shepherd page 332
in CR/DR there is a _______ relationship between the exposure given to the PSP and its
resulting luminescence as it is scanned by the laser
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A.sigmoidal
B.nonlinear
C.linear
D.circular correct answers C.linear
Shepherd page 332
M
in film there is a _______ relationship Limited by the toe and shoulder of the characteristic curve
ED
A.sinusoidal
B.nonlinear
ST
C.linear
D.circular correct answers A.sinusoidal
U
Shepherd page 332
D
Most of the xrays generated at the focal spot are directed downward and pass through the xray
Y
tubes ________
A.anode
B.cathode
C.port window
D.anode bevel correct answers C.port window