Due to the fact that a plasma consists of freely moving charged particles, it has a natural tendency to shield net charges (or DC electric fields).
The effective shielding length is the Debye length, and can be derived from a simple two fluid model of the plasma.
[1]
[2]
![{\displaystyle \lambda _{D}=\left({\frac {\varepsilon _{0}T_{e}}{e^{2}n_{0}}}\right)^{1/2}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/5089182de4aaf2baea40ce0c750d5c95e7d5a059)
where Te is given in energy units.
References
- ↑ J.P. Freidberg, Plasma physics and fusion energy, Cambridge University Press (2007) ISBN 0521851076
- ↑ K. Miyamoto, Plasma Physics and Controlled Nuclear Fusion, Springer-Verlag (2005) ISBN 3540242171