Open AccessThe Penning Discharge Experimental Study and Its Simulation
Author(s) -
Н. В. Мамедов,
N. N. Schitov,
M. G. Lobok,
I. A. Kanshin
Publication year - 2016
Publication title -
plasma physics and technology
Language(s) - English
Resource type - Journals
eISSN - 2336-2634
pISSN - 2336-2626
DOI - 10.14311/ppt.2016.3.158
Subject(s) - anode , ignition system , atomic physics , plasma , glow discharge , ion , electrode , current (fluid) , particle in cell , current density , materials science , mechanics , chemistry , physics , nuclear physics , organic chemistry , quantum mechanics , thermodynamics
The influence of the demountable Penning ion source electrodes geometry on the discharge characteristics and extracted ion current is investigated. The extracted currents, ignition potentials and the operational pressure ranges are compared at different anode heights and its arrangement relative to the discharge cell. The use of ring and mesh anodes has allowed to visualize the discharge burning areas and their structure versus the pressure, anode potential and cell geometry. Some PIC simulations of Penning discharge are made in the Vorpal code. The good correspondence between the simulated electron density and plasma glow areas on the photos is shown. The other one-particle simulation has shown that the magnetic field nonuniformity significantly affects the ignition and combustion discharge potentials.