X-RAY TUBE

Heat is a desirable product during X-ray production.

• TRUE

• FALSE

The following are the support structure of an X-ray tube EXCEPT:

• Ceiling support

• Floor to ceiling support

• Floor mounting system

• Rotor-stator

The vacuum condition in the X-ray tube is provided by ___________.

The protective housing is made of _______.

• aluminium

• lead

• concrete

• tungsten

The site for the production of electrons is

• anode

• cathode

• focusing cup

• glass envelope

_________ determines the focal spot size.

• Filament

• Anode

• Glass envelope

• Rotor

The component that does not belong to stationary anode X-ray tube is

• filament

• focusing cup

• glass envelope

• bearing

Anode stem is

• made of tungsten.

• shape like a saucer.

• designed to minimised heat through conduction.

• coated with lead (Pb) & silver as a lubricant.

The crazing effect on the anode disk surface can be reduced by adding

• rhenium.

• molybdenum.

• lead.

• silver.

X-ray tube failure is mainly due to damage of