X-ray Tube Parts
The coil of wire that is the source of burned off electrons.
What is the filament?
Thermal energy is measured in heat units of _____.
What is joules?
This is the positive side of the x-ray tube.
What is the anode?
What rating chart displays the length of time for the x-ray tube housing to completely cool?
What is the housing cooling chart?
The most common cause of abrupt tube failure.
What is evaporated tungsten?
The purpose of this is to direct electrons toward the anode.
What is the focusing cup?
The filament current is measured in _____.
What is amps?
This is the negative side of the x-ray tube.
What is the cathode?
This chart is considered the most important one.
What is the radiographic rating chart?
This occurs when the filament is heated and outer shell electrons are boiled off.
What is thermionic emission?
The actual area on the target where x-rays are emitted.
What is the focal spot?
This formula is used to determine a heat unit for a three phase/high frequency generator.
What is 1.4 x kVp x mA x sec?
Referring to the induction motor, the _____ is a series of electromagnets around the outside of the x-ray tube.
What is the stator?
This chart shows how long an anode needs to cool after a particular level of heat has been received by the anode.
What is the anode cooling chart?
This type of radiation occurs when electrons interact with the target somewhere other than the focal spot.
What is off focus radiation?
Referring to an induction motor, the _____ is the shaft made of copper and soft iron inside the tube.
What is the rotor?
The tube current is measured in _____.
What is milliamps?
The target in a stationary anode is made of this.
What is tungsten in a copper block?
Leakage radiation must not exceed this when operated at maximum conditions.
What is 1 mGy/hr at 1 meter?
This states that by angling the target, the effective area of the target is much smaller than the actual area of electron interaction.
What is the line focus principle?
The target in a rotating anode is made of this.
What is a tungsten-rhenium alloy?
The melting point of tungsten in degrees Celsius.
What is 3410?
This process controls anode rotation.
What is electromagnetic induction?
Filament currents are in this range in amps.
What is 3-6 amps?
This portion of the spine should be placed under the cathode when using the anode heel effect
What is the inferior aspect?