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6 papers · 2 filters
Spoke formation in low temperature ExB plasmas. Transition from gradient-drift instability to ionization wave
J P Boeuf
Long wavelength plasma non-uniformities rotating in the azimuthal direction ("rotating spokes") have been observed in a number of experiments on Hall thrusters or magnetron dischar…
Azimuthal structures and turbulent transport in Penning discharge
M. Tyushev, M. Papahn Zadeh, V. Sharma +4
Azimuthal structures in cylindrical Penning discharge are studied with 2D3V radial-azimuthal PIC/MCC model with the axial magnetic field. The discharge is self-consistently support…
Interpretation of Stark broadening measurements on a spatially integrated plasma spectral line
Julien Thouin, Malyk Benmouffok, Pierre Freton +1
In thermal plasma spectroscopy, Stark broadening measurement of hydrogen spectral lines is considered to be a good and reliable measurement for electron density. Unlike intensity b…
Wave propagation in rotating magnetised plasmas
Renaud Gueroult, Jean-Marcel Rax, Nathaniel J. Fisch
Wave propagation properties in a medium are fundamentally affected when this medium is moving instead of at rest. In isotropic dielectric media rotation has two noteworthy contribu…
Ionization waves (striations) in a low-current plasma column revisited with kinetic and fluid models
J. Boeuf
A one-dimensional Particle-In-Cell Monte Carlo Collisions (PIC-MCC) method has been used to model the development and propagation of ionization waves in neon and argon positive col…
Fluid and hybrid simulations of the ionization instabilities in Hall thruster
Oleksandr Chapurin, Andrei Smolyakov, Gerjan Hagelaar +2
Low-frequency axial oscillations (5-50 kHz) stand out as a pervasive feature observed in many types of Hall thrusters. While it is widely recognized that the ionization effects pla…