what is relation of between "collision frequency" and "gas pressure and Temperature"?

[ghasem_008]

what is relation of between "collision frequency" and "gas pressure and Temperature"?

Hi
I have two question.
in a cylindrical surface wave discharge plasma:
1- what is relation of between "collision frequency" with "gas pressure and Temperature"?

2- what is relation of between electron density in "edge of sheath" and "center of plasma column"?

please'if possible,you reply with a exact reference.
thank

 

[jiugegouling]

Re: what is relation of between "collision frequency" and "gas pressure and Temperatu

in my understand the electron density of " edge of sheath ">>"center of plasma column"