NMTCB-CT Exam Questions With Correct
Answers
Where are x-rays made? - answerin the electron shell structure of an atom
What is Bremsstrahlung radiation? - answerenergetic electrons pass very near the nucleus of an
atom. The strong forces of th positive charged atom causes the negatively charged...
True or false: in CT, the gantry rotates continuously in one direction on a slip ring system -
answer✔true
What is a scout imaged used for? - answer✔Positioning /localization
Pitch - answer✔the ratio of patient's movements through the gantry during one 360 degree beam
rotation relative to the beam collimation (in single slice CT)
The table distance traveled in 1 gantry rotation of 360o divided by the total thickness of all
acquired slices—in multi detector CT
How is pitch calculated? - answer✔pitch = table movement per rotation (mm)/ (number of
slices)(slices width in mm)
What happens when pitch is decreased? - answer✔--the number of views per linear scan distance
increases,
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