Evolution of Excited Convective Cells in Plasmas

Hans Pécseli; Jens Juul Rasmussen; H. Sugai; K. Thomsen

doi:10.1088/0741-3335/26/8/007

Evolution of Excited Convective Cells in Plasmas

Hans Pécseli, Jens Juul Rasmussen, H. Sugai, K. Thomsen

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Abstract

Convective cells are excited externally in a fully ionized magnetized plasma and their space-time evolution is investigated by two-dimensional potential measurements. A positive cell is excited externally by control of the end losses in the 'scrape off' layer of a plasma column produced by surface ionization. Its interaction with the main plasma produces a new cell with negative polarity. The two cells propagate close to each other and interact only through a mutual perturbation of orbits. The damping of the cells is due mainly to geometrical elongation, end-losses and turbulent fluctuations.

Original language	English
Journal	Plasma Physics and Controlled Fusion
Volume	26
Issue number	8
Pages (from-to)	1021-1034
ISSN	0741-3335
DOIs	https://doi.org/10.1088/0741-3335/26/8/007
Publication status	Published - 1984

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title = "Evolution of Excited Convective Cells in Plasmas",

abstract = "Convective cells are excited externally in a fully ionized magnetized plasma and their space-time evolution is investigated by two-dimensional potential measurements. A positive cell is excited externally by control of the end losses in the 'scrape off' layer of a plasma column produced by surface ionization. Its interaction with the main plasma produces a new cell with negative polarity. The two cells propagate close to each other and interact only through a mutual perturbation of orbits. The damping of the cells is due mainly to geometrical elongation, end-losses and turbulent fluctuations.",

author = "Hans P{\'e}cseli and {Juul Rasmussen}, Jens and H. Sugai and K. Thomsen",

year = "1984",

doi = "10.1088/0741-3335/26/8/007",

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journal = "Plasma Physics and Controlled Fusion",

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T1 - Evolution of Excited Convective Cells in Plasmas

AU - Pécseli, Hans

AU - Juul Rasmussen, Jens

AU - Sugai, H.

AU - Thomsen, K.

PY - 1984

Y1 - 1984

N2 - Convective cells are excited externally in a fully ionized magnetized plasma and their space-time evolution is investigated by two-dimensional potential measurements. A positive cell is excited externally by control of the end losses in the 'scrape off' layer of a plasma column produced by surface ionization. Its interaction with the main plasma produces a new cell with negative polarity. The two cells propagate close to each other and interact only through a mutual perturbation of orbits. The damping of the cells is due mainly to geometrical elongation, end-losses and turbulent fluctuations.

AB - Convective cells are excited externally in a fully ionized magnetized plasma and their space-time evolution is investigated by two-dimensional potential measurements. A positive cell is excited externally by control of the end losses in the 'scrape off' layer of a plasma column produced by surface ionization. Its interaction with the main plasma produces a new cell with negative polarity. The two cells propagate close to each other and interact only through a mutual perturbation of orbits. The damping of the cells is due mainly to geometrical elongation, end-losses and turbulent fluctuations.

U2 - 10.1088/0741-3335/26/8/007

DO - 10.1088/0741-3335/26/8/007

M3 - Journal article

SN - 0741-3335

VL - 26

SP - 1021

EP - 1034

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 8

ER -

Evolution of Excited Convective Cells in Plasmas

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