Semenov I. Effect of collisions on screening of macroparticles in a weakly ionized plasma

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U005910

Thesis Registration Form

0413U005910.pdf

Applicant for

Specialization

  • 01.04.02 - Теоретична фізика

24-10-2013

Specialized Academic Board

Д 26.191.01

Bogolybov Institute for Theoretical Physics of NASU

Essay

The effect of ion-neutral collisions on charging and screening of macroparticles in a weakly ionized plasma is analyzed on the basis of the numerical solution of the model kinetic equations. The dependencies of the particles charge on the frequency of ion-neutral collisions are obtained for different particles sizes. It is shown that the particle potential in a collisional plasma has a Coulomb type asymptotical behavior. The influence of ion-neutral collisions on the ion drag force acting on a moving particle is examined. It is shown that the ion drag force changes its direction as the ion mean free path decreases.

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Files

aref.doc

aref.doc

dis.doc

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