Sheath instability

{{Short description|Plasma instability in laboratory plasma}}{{Multiple issues|{{Multiple issues|

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{{Expert|Physics

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Sheath instability is an instability in a plasma where ions form sheaths near an electrode, making the plasma unstable. It is a type of Rayleigh–Taylor instability.{{Cite journal|url=https://pubs.aip.org/aip/pop/article-abstract/19/12/123513/282594/Instability-collapse-and-oscillation-of-sheaths?redirectedFrom=fulltext|title=Instability, collapse, and oscillation of sheaths caused by secondary electron emission | Physics of Plasmas | AIP Publishing|journal=Physics of Plasmas |date=28 December 2012 |volume=19 |issue=12 |doi=10.1063/1.4773195 |last1=Campanell |first1=M. D. |last2=Khrabrov |first2=A. V. |last3=Kaganovich |first3=I. D. |url-access=subscription }}{{Cite journal |last1=Campanell |first1=M. D. |last2=Khrabrov |first2=A. V. |last3=Kaganovich |first3=I. D. |date=2012-06-04 |title=General Cause of Sheath Instability Identified for Low Collisionality Plasmas in Devices with Secondary Electron Emission |url=https://link.aps.org/doi/10.1103/PhysRevLett.108.235001 |journal=Physical Review Letters |volume=108 |issue=23 |pages=235001 |doi=10.1103/PhysRevLett.108.235001|pmid=23003962 |bibcode=2012PhRvL.108w5001C |osti=1103491 }}