The area actually bombarded with filament electrons.
What is the actual focal spot?
These devices are used to lower the current from amperes to milliamperes and increase the voltage from volts to kilovolts
What are step-up Transformers?
The amount of voltage supplied from the incoming line of power to all x-ray equipment.
What is 220V?
*Also accept 200 to 240 volts
The x-ray beam area as seen from the perspective of the patient.
What is the effective focal spot?
DOUBLE JEOPARDY
The process of changing alternating current to direct pulsating current.
Exposure timer is located in this part of the x-ray circut
What is the primary circuit?
This device is operated on the principle of self induction.
What is the autotransformer?
Driving the thermionic cloud from the cathode to the anode requires:
What is high voltage from secondary circuit?
Typical target angles are between _ and _, with __ being the most common angle in general purpose tubes.
What are between 7-18 degrees and 12 degrees is the most common?
This device is located in between the incoming power line and the step-down transformer.
What is the mA meter (rheostat)?
The direction of the flow of electrons in the x-ray tube.
What is cathode to anode?
The smaller the anode angle, the _______ the effective focal spot.
What is smaller?
A variation of the electronic timer that monitors the current passing through the x-ray tube and terminates the exposure when the desired mAs is reached is called this and located in this circuit
What is the mAs timer and located in the secondary circuit?
X-ray production occurs on the _______ side of the x-ray tube.
What is the anode?
This principle states that by angling the face of the anode target, a large actual focal spot size can be maintained, and a small effective focal spot size can be created.
What is the line-focus principle?
A rectifying semiconductor that is made by joining a p-type crystal with an n-type to form a p-n junction so that current flows in only one direction.
What is a diode?
A radiolucent device placed between the patient and the image receptor that terminates the exposure when completely filled
What is AEC ionization chamber?