X-ray System and Accessory Devices
This tube suspension system offers the greatest multidirectional movement.
What is an Overhead Tube Suspension System
This component of the x-ray circuit increases incoming line voltage to a useful voltage for the production of x-rays
What is the step up transformer
This causes the useful x-ray beam to have a variation of radiation intensity
What is the anode heel effect
This is the most commonly used type of beam restricting device.
This should be done to bring the anode up to operating temperature
What is a warm up procedure
This material is the most commonly used material for an x-ray table.
What is Carbon Fiber
This component of the basic x-ray circuit is used to produce x-rays and supply the x-ray tube with properly modified power.
What is the main circuit
Theses are the three conditions that must exist in order to produce x-ray photons
What is a source of electrons, the right target material and high voltage/kVp
This occurs when an incoming x-ray photon ejects a loosely bound outer shell electron and the incident photon changes direction.
What is a compton interaction (scatter radiation)
This useful item can be used to determine the maximum technical factors that can be used without overloading the tube.
What is a tube rating chart
This factor controls the quality of the x-ray beam and the contrast on the image.
What is kVp
The formula for power (volts x amperage) expresses that as voltage potential increases the current will do this.
What is decreases
This is the area of the focal spot that is projected out of the tube toward the object being radiographed.
This is what happens to patient dose when beam restriction is used
What is decrease patient dose
This chart should be addressed for the calculation of the time necessary for the anode to cool enough before additional exposures are made
What is an anode cooling chart
This is what the technologist can do to reduce involuntary motion.
What is Decrease exposure time
OR
Increase kVp combined with a compensating mAs decrease
This component of the generator works most efficiently on alternating current.
What is a transformer
These are the common metal materials used for the focal track.
What is Tungsten and Rhenium
These are the three principle factors that affect the amount of scatter radiation.
What is kVp, irradiated material (Volume or atomic number) and field size
This is the most common cause of x-ray tube failure
What is vaporization of the filament
These are the three components of an x-ray system.
What is the Operating Console, High Voltage Generator and X-ray Tube
This generator type produces a voltage ripple factor of 4-10% and does not allow the voltage in the x-ray tube to fall below 90-96% of the set kVp.
What is a 3 phase 12 pulse generator
This component of the x-ray tube alters the voltage on a grid biased x-ray tube.
This refers to the loss of definition around the periphery of an image.
What is penumbra
This occurs when the stator fails and the rotor ceases to turn
What is melting of the anode and/or deep pit mark