CT REGISTRY REVIEW "PHYSICS"
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
_____ is the minimum amount of time that must transpire between the end of one scan and the
initiation of the next scan. - ANSWER Interscan Delay Time
Material used for Anode target in CT Tube, it has melting point of 3400celius - ANSWER Alloy Tungsten
Choosing a Smaller Cathode Filament will result : - ANSWER generate narrower electron beam, smaller
area on focal spot , spot on the target, creates thinner slice & high resolution.
CT Tube normally uses ______ to _______ kilovoltage. - ANSWER 90 to 140
What controls the temp of the filament, that flows - ANSWER mA
when electron doesn't collide with inner nucleus but electrons slows down that causes loss of energy of
photon is: - ANSWER Bremsstrahlung andBraking Radiation
the patient lies in the z axis - ANSWER axial scans- x y plane stacked along the z axis
________ is the long axis plane - ANSWER z
CT Gantry can be tilted +/- _______ degrees. - ANSWER 30 degrees
The ___was originally designed in 1980's, suited for coronary artery imaging. - ANSWER electron beam
EBCT produces an electron beam at _____ to ____ mSec rotation. - ANSWER 50 to 100
The type of CT gen with multiple detector that encircle the gantry but do not Rotate. - ANSWER 4th
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
_____ is the minimum amount of time that must transpire between the end of one scan and the
initiation of the next scan. - ANSWER Interscan Delay Time
Material used for Anode target in CT Tube, it has melting point of 3400celius - ANSWER Alloy Tungsten
Choosing a Smaller Cathode Filament will result : - ANSWER generate narrower electron beam, smaller
area on focal spot , spot on the target, creates thinner slice & high resolution.
CT Tube normally uses ______ to _______ kilovoltage. - ANSWER 90 to 140
What controls the temp of the filament, that flows - ANSWER mA
when electron doesn't collide with inner nucleus but electrons slows down that causes loss of energy of
photon is: - ANSWER Bremsstrahlung andBraking Radiation
the patient lies in the z axis - ANSWER axial scans- x y plane stacked along the z axis
________ is the long axis plane - ANSWER z
CT Gantry can be tilted +/- _______ degrees. - ANSWER 30 degrees
The ___was originally designed in 1980's, suited for coronary artery imaging. - ANSWER electron beam
EBCT produces an electron beam at _____ to ____ mSec rotation. - ANSWER 50 to 100
The type of CT gen with multiple detector that encircle the gantry but do not Rotate. - ANSWER 4th
