2021/12/10 by L. Chang, Chang, L., L. P. Zhang +18
Engineering · Physics and Astronomy · #Electrohydrodynamics and Fluid Dynamics #FOS: Physical sciences #Particle accelerators and beam dynamics #Plasma Diagnostics and Applications #Plasma Physics (physics.plasm-ph) #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.2112.05352
arxiv created 2021/12/10 · openalex publication_date 2021/12/10 · arxiv updated 2021/12/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The coupling physics between multiple antennas separated axially along a plasma cylinder is investigated. Experiments are carried out on a recently built device: Physics ANd Thruster oriented HElicon Research (PANTHER), with an upgrade of second-stage antennas. Mutual induction currents are measured in detail. It is found that the existence of plasma column going through these antennas increase the coupling effects among them significantly. Theoretical analyses from the perspectives of transformer and magnetic permeability and moment confirm the reasonability of this phenomenon. This work is of particular interest for electrodeless plasma source or thruster which employs multiple antennas for ionisation and acceleration.