Open AccessMagnetic field influence on the Penning discharge characteristics
Author(s) -
Н. В. Мамедов,
Alexander Rohmanenkov,
A. A. Solodovnikov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2064/1/012039
Subject(s) - current (fluid) , atomic physics , magnetic field , anode , particle in cell , electron , ion , physics , waveform , ion current , electric field , symmetry (geometry) , field (mathematics) , computational physics , materials science , voltage , electrode , nuclear physics , geometry , mathematics , quantum mechanics , pure mathematics , thermodynamics
In this work characteristics of pulsed penning ion source for miniature linear accelerators was investigated by experimental measurements and PIC (Particle-In-Cell) simulations. The paper presents dependences of the discharge current and extracted current on intensities of the uniform magnetic field for different pressure. Also, typical examples of the current pulse waveforms obtained by PIC simulation and experiment for different magnetic field are presented. The simulated electron and ion distributions inside discharge gap give qualitative explanation of the experimentally observed fluctuations in current pulses. These current fluctuations arise as a result of the violation of the electric field axial symmetry due to the electron spoke movement of the towards the anode.