Which of following materials is not used within an X-ray tube?
A. Rhenium
B. Radium
C. Tungsten
D. Graphite
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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.
X-ray production occurs at the _____.
A. Cathode
B. anode
C. Filament
D. stator
When the anode angle is less than 45 degrees, _____.
A. the actual focal spot is smaller than the effective focal spot
B. the effective focal spot is smaller than the actual focal spot
C. the actual focal spot is equal to the effective focal spotthe angle has no effect on focal spot
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