CAMRT Radiography Practice Exam

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Excessive rotor prep time can lead to which of the following issues in the x-ray tube?

Increased imaging speed
Filament breakage
Melted bearings
Both b and c

The correct answer is: Both b and c

Excessive rotor prep time primarily affects the components of the x-ray tube, particularly the filament and bearings. When the rotor is activated for an extended period before exposure, it causes increased heating of the filament. Overheating can lead to filament breakage, which interrupts the necessary process for the production of x-rays. Additionally, prolonged rotor operation can also lead to overheating of the bearings within the x-ray tube. These bearings are essential for the rotation of the anode. Excessive heat can cause the lubrication within the bearings to degrade, potentially resulting in melted or damaged bearings. Both issues—filament breakage and melted bearings—underscore the importance of adhering to manufacturer guidelines regarding rotor prep times to ensure the longevity and reliability of the x-ray tube.