Resistive instabilities in Hall current plasma discharge
                    
                        
                            نویسندگان
                            
                            
                        
                        
                    
                    
                    چکیده
منابع مشابه
Growth of resistive instabilities in EÃB plasma discharge simulations
Two-dimensional hybrid numerical simulations of E B discharges used in Hall thruster propulsion point to the presence of strong fluctuations attributable to resistive instabilities in the frequency range of f 0.1–10 MHz and the wavenumber range of −1 10–500 m−1. Analytical analyses confirm that these resistive modes are of the convective type, become increasingly unstable at low electron mobili...
متن کاملNumerical Studies of Instabilities in a Magnetized Hall Discharge
An analysis is presented of low to moderate-frequency wave propagation in Hall thruster channels. Starting with extensive experimental data on the time-averaged, spatially varying plasma properties within a Hall discharge plasma, we subject this plasma to small (linear) perturbations in its properties. For this perturbation analysis, we assume a two-dimensional fluid description that includes a...
متن کاملPlasma instabilities in the ionization regime of a Hall thruster
We present recent experimental results of the use of electrostatic probes to characterize the differences seen in the low frequency instabilities (<200 kHz) in a laboratory Hall discharge operating in the ionization regime, i.e. at low voltages, where the ion current has not reached a maximum. Two very different wall materials are used in this study alumina and boron nitride. A wavelet decompos...
متن کاملResistive Instabilities in a Hall Thruster Under the Presence of Collisions and Thermal Motion of Electrons
The electrostatic and electromagnetic low frequency waves propagating in azimuthal direction in a Hall thruster channel are found to be unstable due to the resistive coupling to the electrons’ closed drift in the presence of collisions. The thermal motion of the electrons and their collisions significantly affect the growth of these waves. With respect to the collision frequency, wave number, e...
متن کاملAnomalous electron mobility in a coaxial Hall discharge plasma.
A comprehensive analysis of measurements supporting the presence of anomalous cross-field electron mobility in Hall plasma accelerators is presented. Nonintrusive laser-induced fluorescence measurements of neutral xenon and ionized xenon velocities, and various electrostatic probe diagnostic measurements are used to locally determine the effective electron Hall parameter inside the accelerator ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2001
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.1336531