Experiments and theory of an upstream ionization instability excited by an accelerated electron beam through a current-free double layer
A low-frequency instability varying from 10 to 20kHz has been discovered in the presence of a current-free double layer (DL) in a low-pressure expanding helicon plasma. The instability is observed using various electrostatic probes, such as Langmuir probes floating or biased to ion saturation and emissive probes measuring the plasma potential. A retarding field energy analyzer measuring the ion energy distribution function downstream of the double layer is used together with the LP to...[Show more]
|Collections||ANU Research Publications|
|Source:||Physics of Plasmas|
|01_Aanesland_Experiments_and_theory_of_an_2006.pdf||Published Version||332.24 kB||Adobe PDF|
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