Response of the low-pressure hot-filament discharge plasma to a positively biased auxiliary disk electrode

@article{Choudhary2021ResponseOT,
  title={Response of the low-pressure hot-filament discharge plasma to a positively biased auxiliary disk electrode},
  author={Mangilal Choudhary and P. K. Sreejith},
  journal={Plasma Science and Technology},
  year={2021}
}
In steady-state, the plasma loss rate to the chamber wall is balanced by the ionization rate in the hotfilament discharges. This balance in the loss rate and ionization rate maintains the quasi–neutrality of the bulk plasma. In this report, we have studied the properties of bulk plasma in the presence of an auxiliary (additional) biased metal disk, which is working as a sink, in low-pressure helium plasma. A single Langmuir probe and emissive probe are used to characterize the plasma for… Expand

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References

SHOWING 1-10 OF 19 REFERENCES
Response of the plasma to the size of an anode electrode biased near the plasma potential
As the size of a positively biased electrode increases, the nature of the interface formed between the electrode and the host plasma undergoes a transition from an electron-rich structure (electronExpand
Particle and power balances of hot‐filament discharge plasmas in a multidipole device
This paper considers particle and power balances to estimate the bulk plasma potential of a hot‐filament discharge plasma produced in a multidipole plasma device. The bulk plasma potential dependenceExpand
Long-Time Evolution of a Low Pressure Laboratory Plasma after Application of Transient high Voltage Positive Pulses
The long-time evolution of weakly-collisional plasma with application of high voltage positive pulses to an electrode immersed in plasma, with pulse widths less than as well as more than ion plasmaExpand
Possible excitation of solitary electron holes in a laboratory plasma
Plasma response to a fast rising high positive voltage pulse is experimentally studied in a uniform and unmagnetized plasma. The pulse is applied to a metallic disk electrode immersed in a lowExpand
The onset of plasma potential locking
In this paper, we provide insight into the role and impact that a positively biased electrode (anode) has on bulk plasma potential. Using two-dimensional Particle-in-Cell simulations, we investigateExpand
Model for the density, temperature, and plasma potential of low-density hot-filament discharges.
  • S. Robertson, Z. Sternovsky
  • Materials Science, Medicine
  • Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2005
TLDR
A theoretical model is developed for the density and temperature of confined electrons and the plasma potential in low-density hot-filament discharges and parameters calculated from the model agree with parameters measured in a double plasma device that has been modified to have a clean wall that gives a single value for the confining potential. Expand
Energy balance and plasma potential in low-density hot-filament discharges
Electron energy balance is shown to play an important role in determining the plasma potential in low-density hot-filament discharges. The confined electrons that are lost to the walls are those withExpand
Variation of plasma parameters in a modified mode of plasma production in a double plasma device
A modified mode of plasma production in a double plasma device is presented and plasma parameters are controlled in this configuration. Here plasma is produced by applying a discharge voltage betweenExpand
Plasma response to transient high voltage pulses
This review reports on plasma response to transient high voltage pulses in a low pressure unmagnetized plasma. Mainly, the experiments are reviewed, when a disc electrode (metallic and dielectric) isExpand
Filament discharge plasma of argon with electrostatic confinement
A filament discharge plasma reactor, with electrostatic confinement, has been constructed. An Ar plasma has been produced in the reactor at a pressure of 10-1 Pa and has been investigated with aExpand
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