Comment on “Two-dimensional positive column structure in a discharge tube with radius discontinuity” [Phys. Plasmas 21, 113503 (2014)]

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4929922· OSTI ID:22493797

Demidova, M. V. ^[1]; Kudryavtsev, A. A. ^[2]; Kurlyandskaya, I. P. ^[3]; Saifutdinov, A. I.; Stepanova, O. M. ^[4]

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1. Department of Chemistry, Wright State University, Dayton, Ohio 45435 (United States)
2. Division of NLP Technology, INTEPH Technology LLC, Dayton, Ohio 45066 (United States)
3. International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation)
4. Department of Optics, St. Petersburg State University, St. Petersburg 199034 (Russian Federation)

Zobnin et al. have published a paper [Phys. Plasmas, 21, 113503 (2014)] on a topic of discharge physics in the presence of a sharp change in cylindrical discharge geometry. In the comment it is pointed out that for untrapped electrons a full kinetic equation, which includes dependences on spatial coordinates and energies, has to be used for the electron velocity distribution function determination. It is also unclear what probe theories Zobnin et al. have used in their paper for the calculation of electron current to the discharge tube wall.

• OSTI ID: 22493797
• Journal Information: Physics of Plasmas, Vol. 22, Issue 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CYLINDRICAL CONFIGURATION
DISTRIBUTION FUNCTIONS
ELECTRONS
ENERGY DEPENDENCE
GAS DISCHARGE TUBES
KINETIC EQUATIONS
PLASMA
POSITIVE COLUMN
PROBES
SPACE DEPENDENCE
TWO-DIMENSIONAL SYSTEMS
VELOCITY