Why is there no generally accepted theory of the plasma-sheath transition and the Bohm criterion?
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Plasmas"
DOI: 10.1063/5.0250002
Abstract: Despite the efforts of able researchers over decades and despite the existence of results of a mathematical nature, including recently obtained pure-mathematics results, there is still no general agreement in gas discharge science regarding the… read more here.
Keywords: criterion; bohm criterion; sheath transition; plasma sheath ... See more keywords
Information hidden in the velocity distribution of ions and the exact kinetic Bohm criterion
Sign Up to like & getrecommendations! Published in 2017 at "Plasma Sources Science and Technology"
DOI: 10.1088/1361-6595/aa5f45
Abstract: A long-standing debate in the literature about the kinetic form of the Bohm criterion is resolved for plasmas with single positive ion species when transport is dominated by charge exchange collisions. The solution of the… read more here.
Keywords: velocity distribution; bohm; ion; bohm criterion ... See more keywords
Modified Bohm Criterion and Sheath Characteristics in Nonextensive Electronegative Collisional Warm Plasma With Electron Emitting Surfaces
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Plasma Science"
DOI: 10.1109/tps.2024.3432331
Abstract: Bohm criterion and sheath formation mechanism are evaluated using Sagdeev potential approach in warm electronegative collisional plasma in contact with electron emitting surfaces and having q-nonextensively distributed electrons. The Bohm velocity is found to depend… read more here.
Keywords: criterion sheath; electronegative collisional; electron emitting; sheath ... See more keywords