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Cards (98)

  • FATHER OF RADIOGRAPHY
    Wilhelm Conrad Roent (November 8, 1895)
  • kVp indicator (KilovoltagePeak)
    • Controls or it shows the
    highest point of which x-rays are produced
  • kVp indicator for dental radiographs
    60-90 kVp
  • controls the length of time
    timer
  • mA regulator range for dentak x-ray machines
    8-12 mA or 10-15 mA
  • Allows the movement or adjustment of the tubehead
    towards the area to be radiographed, extend the control panel to the tubehead
    EXTENSION ARM
  • A tightly sealed, heavy metal housing that contains the x-ray tube that produces dental x-rays
    TUBEHEAD
  • Contains the angulations that were used in
    taking a radiograph. It has a 5-degree angulation
    NUMBER SCALE
  • The tubehead and the cone is positioned
    parallel to the ground
    ZERO ANGULATION
  • The tubehead and PID is pointing downward
    POSITIVE ANGULATION
  • The tubehead and PID is pointing upward
    NEGATIVE ANGULATION
  • MELTING POINT OF TUNGSTEN
    3410 degrees Celsius
  • Helps produce x-ray even with the production of heat
    TUNGSTEN
  • Metal that absorbs heat during x-ray production
    COPPER
  • The heart of the x-ray generating system
    XRAY TUBE
  • a lead-line structure or metal body that
    surrounds your tubehead; protects the x-ray tube
    METAL HOUSING
  • absorbs heat produced during x-ray production
    INSULATING OIL/GAS
  • Direct x-ray beam to the area to be radiographed
    PID (POSITION INDICATING DEVICE )
  • It restricts and controls the size of the x-ray beam
    LEAD COLLIMATOR/ LEAD DIAPHRAGM
  • It restricts and controls the size of the x-ray beam
    LEAD COLLIMATOR/ LEAD DIAPHRAGM
  • These are layers of aluminum that
    functions to absorb low energy forms of radiation that are produced during x-ray production
    ALUMINUM DISKS
  • This is the only part in the x-ray tubehead that does not have lead
    TUBEHEAD SEAL
  • allows x-rays that were produced in the x-ray tubehead to exit your machine
    TUBEHEAD SEAL
  • Functions to bring the incoming
    voltage of 110 or 220 volts to 60,000-90,000 or 100,000
    volts.
    STEP-UP TRANSFORMER
  • Adjusts the incoming voltage of
    110 or 220 volts to just 7-10 volts
    STEP DOWN TRANSFORMER
  • Adjusts the voltage incase there are fluctuations of incoming power
    AUTO TRANSFORMER
  • prevents x-rays from escaping in all direction
    LEADED GLASS HOUSING/ LEADED-GLASS VACUUM
  • Unleaded glass window is made of what metal
    BERRYLIUM
  • • The only portion of your leaded glass housing that does not contain lead
    • It allows x-rays produced by the x-ray tube to exit the x-ray tube
    UNLEADED GLASS WINDOW
  • At the cathode, tungsten will release electrons needed for x-ray the production
    TRUE
  • o Produces the electrons when heated
    o Where energy or electrons are produced.
    TUNGSTEN FILAMENT
  • o “focusing cup”
    o Where the tungsten filament is embedded
    o Concave structure that focuses or directs
    electrons produced by the tungsten filament
    towards the anode, specifically the tungsten
    target
    MOLYBDENUM CUP
  • ANODE
    >right side
    >positive electrode or positive side of the x-ray tubehead
  • direction of the flow of x-ray production
    (negative to positive)
  • CATHODE
    >left side
    negative electorde on the x-ray tubehead
  • where. tungstem [plate/ target is embedded; absorbs heat
    COPPER STEM
  • where the energy of the electrons coming
    from the cathode is converted into x-rays; focal spot/ focal plate
    TUNGSTEN TARGET/ PLATE
  • Stationary Anode
    o Focal spot (focal: meaning “steady”)
    o Used in dental x-ray machines
  • Rotating Anode
    o Focal track
    o Used in bigger machines (for orthodontic
    treatment, skull x-ray)
  • The actual focal spot size is bigger than the effective focal spot size.
    TRUE