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Electrostatic wave breaking limit in a cold electronegative plasma with non-Maxwellian electrons
1Physics Department, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt. elkamashi@gmail.com.
Scientific Reports
|March 18, 2021
Summary
This study explores how energetic electrons affect wave breaking in plasmas with negative ions. Understanding these plasma dynamics is crucial for space environments and particle acceleration experiments.
Area of Science:
- Plasma Physics
- Space Physics
- Astrophysics
Background:
- Electronegative plasmas containing nonthermal electrons are relevant to space environments and laboratory experiments.
- Understanding wave breaking phenomena is crucial for plasma dynamics and particle acceleration.
Purpose of the Study:
- To investigate the influence of suprathermal electrons on the wave breaking amplitude limit in a one-dimensional multifluid hydrodynamic model.
- To analyze the role of plasma parameters on wave breaking in electronegative plasmas.
Main Methods:
- A one-dimensional multifluid hydrodynamic model was used.
- A traveling wave approximation was employed to derive a pseudo-energy balance equation.
- Phase space topology analysis of the pseudopotential function was performed to explore parameter effects.
Main Results:
- The study derived a pseudo-energy balance equation for the fluid-dynamical system.
- The impact of ion density ratio, ion mass ratio, and superthermal index on wave breaking amplitude was analyzed.
- Phase space topology revealed how these parameters influence the wave breaking limit.
Conclusions:
- Suprathermal electrons significantly influence the wave breaking amplitude limit in electronegative plasmas.
- The findings are applicable to particle acceleration in space and plasma-based accelerator schemes.
- The model provides insights into complex plasma behaviors involving negative ions and nonthermal electrons.
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