HOW X-RAY PRODUCTION TAKES PLACE?

SOURCE FOR XRAY PRODUCTION

The production of x-ray needs the following requirements

·         Electron source cathode

·         Target to stop the electron(anode)

·         High voltage power supply to accelerate electrons

·         Vacuum

·         And tube insert and housing.

·         Electrons can be produced by ionization in gas or by thermionic emission

·         The electron source act as cathode and target act as anode. The high voltage is applied between anode and cathode. this voltage  accelerate the electrons to a high velocity as a result the electron will possess a high kinetic energy, when the electrons are stopped by the target ,the electron kinetic energy is converted into x-rays energy thus x-rays are produced

·         A high vacuum is maintained between the anode and cathode. this is necessary

·         To avoid collision between the electrons and gas molecules and

·         To avoid oxidation of tungsten filament in the cathode they require vacuum is less than 10^-5mmhg

·         The housing absorbs the x-ray emerging in undesired direction.

·         Maintains the require vacuum

·         And act  as an electrical insulator

·         And also contain cooling system which remove the heat from the target the equipment having all above requirements is called an x-ray tube