What’s the function of the radial slots in the anode?
A. to let the anode cool down quickly
B. to hold the cooling oil
C. to relief the mechanical stress
D. to ease the anode manufacture
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Tungsten is selected to be the anode material because_____.
A. its low atomic number to the efficiency of radiation production
B. its high hardness to be bombard
C. its high melting point to the power rating
D. it’s easy to be manufactured
Which of following materials is not used within an X-ray tube?
A. Rhenium
B. Radium
C. Tungsten
D. Graphite
Stationary X-ray tubes are normally utilized in the following applications except____.
A. Dental examination
B. Hand/foot examination
Computerized Tomography
D. Portable units
Regarding geometric unsharpness, which of the following is false?
A. Inversely proportional to focal spot size
B. Directly proportional to object-film distance.
C. Inversely proportional to focal spot-object distance.
D. Characterized by penumbra width.
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