Comment on “Three-dimensional numerical investigation of electron transport with rotating spoke in a cylindrical anode layer Hall plasma accelerator” [Phys. Plasmas 19, 073519 (2012)] | Zendy

C. L. Ellison | Zendy; K. Matyash | Zendy; Jeffrey B. Parker | Zendy; Yevgeny Raitses | Zendy; N. J. Fisch | Zendy

Open Access

Comment on “Three-dimensional numerical investigation of electron transport with rotating spoke in a cylindrical anode layer Hall plasma accelerator” [Phys. Plasmas 19, 073519 (2012)]

Author(s) -

C. L. Ellison,

K. Matyash,

Jeffrey B. Parker,

Yevgeny Raitses,

N. J. Fisch

Publication year - 2013

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4773895

Subject(s) - physics , plasma , electron , oscillation (cell signaling) , atomic physics , rotation (mathematics) , computational physics , quantum electrodynamics , quantum mechanics , geometry , mathematics , genetics , biology

The oscillation behavior described by Tang et al. [Phys. Plasmas 19, 073519 (2012)] differs too greatly from previous experimental and numerical studies to claim observation of the same phenomenon. Most significantly, the rotation velocity by Tang et al. [Phys. Plasmas 19, 073519 (2012)] is three orders of magnitude larger than that of typical “rotating spoke” phenomena. Several physical and numerical considerations are presented to more accurately understand the numerical results of Tang et al. [Phys. Plasmas 19, 073519 (2012)] in light of previous studies.

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