X-ray Imaging System

• What are the main 3 sections of an x-ray imaging system ?

  Control console or Low Voltage

  HIgh-Voltage

  X-ray Tube
• What are the 3 circuits x-ray imaging system ?

  Primary Circuit

  Secondary Circuit

  Filament Circuit
• What component of an x-ray tube monitors/measures the incoming line voltage ?

  Line monitor or Line meter
• What section is the Line Monitor/Meter located ?

  Low voltage
• What circuit is the line monitor/ meter located ?

  primary circuit
• What component raises the voltage to the kV range the tube needs ?

  Line Compensator
• What section is the Line compensator located ?

  low voltage section
• What circuit is the Line compensator located ?

  In the primary circuit
• What is a device that make current flow in one direction ?

  diode
• A diode is also known as a _________

  rectifier
• A diode is considered to be what type of electrostatic conductor ?

  semiconductor
• What type of device is the Ma selector ?

  rheostat
• What is the function of a Ma selector ?

  to adjust current by varying the resistance in the circuit
• What component is the first to recieve power in the x-ray imaging system ?

  autotransformer
• What is a component that monitors/measures the amperage in the circuit ?

  mA meter
• Where does the control console recieve power from ?

  primary circuit
• Anoder and Cathode of the x-ray tube recieves modified power from the secondary circuit
• x-ray tube filament recieves modified power from the filament circuit
• What measures the incoming line voltage and current ?

  line monitor
• What adjust the incoming voltage to 220 V and correctes any fluctuations in power distributed to the x-ray unit ?


  line compensator
• What is the 1st componnet to recieve the power supplied to the x-ray imaging system ?

  autotransformer
• What provides power to the secondary and filament circuits ?

  autotransformer
• What provides the precise voltage needed by the high-voltage transformer and the filament transformer ?

  autotransformer
• What has a single winding with primary ( incoming ) and secondary connections ?

  autotransformer
• How are voltage and number of turns ?


  direcctly related
• What provides the required kilovoltage to the imaging system ?

  kvp selector
• Which kvp selctor adjusts the kVp by factor of 10 ?

  major kVp selector
• Which kVp selector kVp by factor of 1-2 ?

  minor kVp selector
• What monitors the kilovoltage in the imaging system beofre an exposure ?

  kVp meter
• kVp selectors adjust the kilovoltage based on the voltage registered by the kVp meter
• What controls exposure time by terminating ( stopping ) the x-ray exposure ?

  exposure timer
• What works in concert with the mA selector ( rheostat ) ?


  exposure timer
• What acts as a safety feature that will terminate an exposure after 6 seconds ?


  guard timer
• What are four types of timing circuits ?

  synchronous, electronic, mAs, and AEC ( automatic exposure control )
• What timer is the most complex , and most accurate of all the x-ray timers ?


  electronic timers
• What automatically stops or temrinates the exposure when the image receptor recieves the required amount of radiation ?

  automatic exposure control ( AEC )
• What timer is set to 1.5 times the expected exposure time ( or 150% ) in case of timer failure ?


  Back-up timer
• What is a rheostat that adjusts current by varying the resistance in the circuit ?


  mA selector
• The higher the mA station , the lower the resistance
• Which generator converts voltage to kilovoltage ( v to kV ) and amperage to milliamperage ( A to mA ) ?


  high voltage generator