Question

The figure below shows the common features of an x-ray tube.
         

1. Name the parts labelled A and B.
   A -    
   B -     
2. What property of lead makes it suitable for use as shielding material?   
3. Explain how the intensity of the x-rays from such a tube may be increased.    
4. If the x-ray tube is operated with an anode voltage of 10KV and a tube current of 160MA,
   Given
   • Charge of an electron = 1.6 x 10^-19C
   • Mass of an electron = 9.1 × 10^-31 kg.
     Planck's constant = 6.63 x 10-34JS
     1ev = 1.6 x 10^-19J.
     Determine the velocity of an electron striking the target.  

Answer 1

1. A-Copper Anode
   B-Stream of electrons
2. High density
3. Increasing the cathode heating current
4. ½mv² =ev
     mv²=2ev