Chapter 7 Part 2

• the actual source fo radiation inside the x-ray tube ?


  focal spot
• What is the area where elctrons strike the target and x-rays are produced ?

  focal spot
• focal spot is a fixed target 


  stationary anode
• focal spot is any area on the focal track 


  rotating anodes
• What part of the anode is located inside the enclosure ?


  rotor
• The rotor is considered to be : 


  ferromagnetic
• What part of the anode is located outside the enclosure and surrounds the rotor ?


  stator
• The rotating anode is powered by an induction motor made up of the rotor
• On what side does the filametn heat up ?


  cathode side
• On what side does the elctrons are produced ?

  cathode side
• On what side does the stator windings are activated in sequence ?


  anode side
• On what side does a moving current creates a changing magnetic field ?


  anode side
• On which side does the magnetic field causes the roto to run rapidly ?


  anode side
• relationship between the actual focal spot and the effective focal spot

  line focus principle
• physical area of the focal track that is impacted 


  actual focal spot
• area of the focal spot projected out of the tube 


  effective focal spot
• used for higher exposure techniques and can tolerate larger heat loads 


  large