Which type of distortion that can occur with tube-type fluoroscopic image intensifiers is most often caused by the presence of strong magnetic fields?
A) Veiling glare
B) S distortion
C) Pincushion distortion
D) Vignetting
Correct Answer:
Verified
Q1: At any combination of tube potential and
Q2: A photocathode is a device that emits
A)
Q4: The input phosphor of an image intensifier
Q5: The television camera most commonly used to
Q6: A reduction in brightness at the periphery
Q7: Performance testing of fluoroscopic systems must include
Q8: Quality control tests of fluoroscopic systems should
Q9: Which type of test tool may be
Q10: In standard broadcast television, one image frame
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