The reason for using a rotating anode is_____.
A. to reduce heating on the filament
B. to increase radiation output
C. to keep the effective focus small
D. a combination of B and C
查看答案
The maximum energy of the X-ray quanta is determined by____.
A. Tube voltage kV
B. Dose rate mAs
C. Tube current mA
D. filament current
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
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
微信支付 
支付宝支付