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Bushong Chapter 5

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  • The most accurate type of timer is the ___________________ timer?
    electrical
  • The __________________ circuit provides electrons for the x-ray tube current?
    filament
  • The step-up transformer increases voltage _______________ times?
    500-1000
  • How many windings does the autotransformer have?
    two
  • Full wave ,rectified, 3 phase units provide a beam that has _____ pulses per second?
    360
  • If a wavelength increases by 2 what must its frequency decrease by ?
    1/2
  • The difference in the waveform between the primary and secondary sides of the high voltage transformer is the _________________?
    amplitude
  • What is going on with the electrons that causes heat?
    excitation
  • What are the three main parts of the x-ray imaging system?
    High voltage generator, tube and coperating console
  • What is a grid controlled tube?
    the tube controls the current, and uses the shortest exposure time possible
  • What is a falling load generator?
    it is when the mA drops
  • Variations in power coming from the electric Co. are corrected by the ?
    line compensator
  • If a distance from a source is tripled, the intensity of the beam will be how much of the original?
    1/9
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