A loss of brightness around the edge of the fluoroscopic image caused by the curve of the photocathode is
A) noise
B) pincushion appearance
C) vignetting
D) magnification
Correct Answer:
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Q17: If a 30/23/15 cm image intensifier is
Q22: _ is measured in cd/m2/mR/s.
A) Brightness gain
B)
Q23: The formula to determine the amount of
Q24: In fluoroscopy, shape distortion is caused by
A)
Q26: If the input phosphor measures 30 cm
Q27: Distortion of the fluoroscopic image that appears
Q28: The formula for brightness gain is
A) brightness
Q29: Typical fluoroscopic systems have spatial resolution capabilities
Q31: The diameter of the input phosphor typically
Q32: A disadvantage of using magnification mode during
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