X-Ray Tube

The focusing cup is a part of which circuit?

• Primary circuit

• Secondary circuit

• Tertiary circuit

• Control circuit

What is meant by “arcing?”

• A phenomenon where electrical discharge occurs between two conductors.

• A problem with glass envelopes, resulting in tube damage.

• A type of electrical insulation failure.

• A method of enhancing electrical conductivity.

The cathode assembly includes what?

• envelope

• filaments

• focusing cup

• 2 and 3

Describe the x-ray tube focal track.

• A stationary point where x-rays are produced.

• A moving line created by the target during exposure.

• A fixed area on the x-ray tube that does not change.

• The point where the x-ray beam is focused on the patient.

The anode assembly includes what?

• target, induction motor

• cathode, transformer

• diode, capacitor

• resistor, inductor

What helps to keep the x-ray tube cool on the inside of the protective housing?

• Cooling fans and oil bath

• Water cooling system

• Air conditioning unit

• Thermal insulation material

What portion of the induction motor is outside the glass envelope?

• The rotor

• The stator

• The winding

• The bearing

In your own words, describe the cooling chart and why is it used?

• The cooling chart is used to calculate the length of time needed between exposures so that the tube’s heat loading capacity is not exceeded.

• The cooling chart helps in determining the optimal temperature for various materials during processing.

• The cooling chart is a graphical representation of temperature changes over time for different substances.

• The cooling chart is used to measure the efficiency of cooling systems in industrial applications.

What is the advantage of a larger actual focal spot?

• A large actual focal spot allows for faster imaging processes.

• A large actual focal spot increases the sharpness of the image.

• A large actual focal spot spreads out the heat that is produced over a larger area, allowing greater x-ray exposures.

• A large actual focal spot reduces the amount of radiation exposure to the patient.

In a specialty x-ray tube, the anode rotates how many times?

• 5,000 revolutions per minute

• 7,500 revolutions per minute

• 10,000 revolutions per minute

• 12,000 revolutions per minute