X ray production - doubts in the principle involved

AI Thread Summary
X-ray production involves the ionization of air molecules due to a high electric field in the tube, leading to positive ions being attracted to the cathode. The confusion arises regarding the principle that allows these positive ions to release electrons from the cathode upon collision. It is explained that when positive ions collide with the cathode, they transfer energy to the atoms, and if this energy exceeds the ionization energy, electrons are emitted. The discussion seeks further clarification on this energy transfer process and its implications for X-ray production. Understanding these principles is crucial for grasping the mechanics of X-ray generation.
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X ray production -- doubts in the principle involved

Homework Statement



In x ray production, air molecules are ionised due to presence of very high electric field within the tube and positive ions are attracted to the cathode C and due to their impact electrons are emitted from the cathode.
I have a doubt in this. What is the underlying principle in which positive ions on collision with cathode, electrons coming out of cathode.

Homework Equations


The above scenario was before the advent of Coolidge tube.

The Attempt at a Solution

 
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When positive ions collide with cathode then they collide with atoms transferring energy.When this is greater then ionization energy then electrons are released.
 


I don't understand Bhaskar. Could u elaborate more, pls?
 

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