Operating Console
When the exposure button is pressed, these are sent through the filament circuit?
What is current and voltage.
This device is designed to initiate all x-rays
What is the exposure switch?
An electrical device that will cause current to become direct .
What is a rectifier.
•The filament circuit draws electricity from this device , which then travels to the rheostat.
What is the Autotransformer
A conductor creates these 2 things when a circuit is closed, and voltage is applied across the x-ray tube
What are electric currents and magnetic field.
The electronic device that precisely controls the milliamperage selected.
What is the Rheostat.
•This adjusts the autotransformer and determines the number of turns on the secondary side necessary to produce a voltage, through self-induction, that will be sent to the step-up transformer.
What is kilovoltage peak?
The component in an x-ray tube that contains the filament and focusing cup.
What is the Cathode
•This travels from the rheostat to the step-down transformer.
What is Electricity.
•This controls the rheostat which is a variable resistor controlled.
The mA selector on the console
The four choices on the operating console that control voltage, current, automatic exposure time and filament choices.
What are the kVp, mA, AEC and Focal Spot size?
•This increases this voltage by a fixed amount and through mutual induction produces the kilovoltage selected on the operating console.
What is a Step up Transformer?
Device core material made of molybdenum coated Tungsten on a copper shaft with molybdenum core..
What is the anode/target typically made of.
The device that adjusts current from the step-down transformer , get rectified to DC current that is negative,
What is a diode.
This type of x-ray is produced when an incoming electrons interacts with the nucleus of a target atom.
What is Bremsstrahlung radiation.
This relationship is when two transformers cause voltage to increase and current to decrease.
What is an inverse relationship?
The amount of voltage supplied from the incoming line of power to all x-ray equipment.
What is 200 to 240 volts
•This is used to route electricity through the x-ray tube on the secondary circuit.
What are solid-state rectifiers?
The charge of current after leaving the diodes on the filament circuit.
What is DC negative current?
When the mA station was selected, the appropriate filament was also selected. These are know as:
What are large and small focal spots
The current selected causes this filament effect.
What causes the boiling off of electrons from the filament?
A transformer works most efficiently on ______ current.
What is Alternating Current?
•After passing through the rectifiers, the electricity creates this on the anode of the x-ray tube.
What is a large positive charge.
Where the negative DC current ends in the filament circuit.
What are the filaments within the focusing cup.
The higher the milliamperage station number.
What is lower the resistance.
The timer on the console.
The type of transformer an autotransformer is.
What is a variable transformer?
A device placed to monitor x-ray tube current in the secondary circuit.
What is a millampere meter?
•This current electrons are heated in the filaments to this point.
What is literally boiled off.
Name the three components with their functions needed to produce an x-ray.
what are Cathode (source of electrons)
Voltage (rapid acceleration)
Anode/Target ( sudden deacceleration
Digital Radiography processes images not only using mA and kVp but this choice also.
What is the size of the patient.
Uses ionization chambers and the human body as a timer.
What is AEC, Automatic exposure control
The direction the electricity must travel in X-Ray tubes.
What is Cathode to Anode
•Another name for the group of electrons created by the filament circuit (heating of the filament).
What is a cloud.
Another name for the Autotransformer.
What is kVp selector
The tube default will not expose if not facing the correct x-ray machine device.
What is the selection of the table bucky, wall stand or IR plate.
A device that protects against short circuits and electric shock.
A semiconducting crystal with an abundance of "electron traps"
What is P-type semiconducting crystal
The location of the largest DC negative charge.
What is the Cathode.
•The large negative charge on the cathode keeps the electrons crowded together using this device; otherwise, they would repel each other and scatter throughout the tube.
What is the focusing cup.