ICRF physics aspects of wall conditioning plasma characterization in TEXTOR

Manash Kumar Paul; A. Lyssoivan; R. Koch; G. Van Wassenhove; M. Vervier; G. Bertschinger; R. Laengner; B. Unterberg; G. Sergienko; V. Philipps; T. Wauters

doi:10.1016/j.fusengdes.2012.10.007

ICRF physics aspects of wall conditioning plasma characterization in TEXTOR

Manash Kumar Paul, A. Lyssoivan, R. Koch, G. Van Wassenhove, M. Vervier, G. Bertschinger, R. Laengner, B. Unterberg, G. Sergienko, V. Philipps, T. Wauters

Laboratory for Plasma Physics

Research output: Contribution to journal › Article › peer-review

Abstract

This paper focuses on encouraging results obtained on the characterization of RF produced plasmas during pulsed-mode wall conditioning discharges in ion cyclotron resonance frequency (ICRF) regime in the limiter tokamak TEXTOR. Recent Ion Cyclotron Wall Conditioning (ICWC) experiment carried out in TEXTOR tokamak, lead to the identification of various dependences of the antenna-plasma coupling efficiency on the plasma parameters for possible ICWC-discharge cleaning in ITER at half field. Our ICWC experiments emphasize on (i) study of antenna coupling during the mode conversion scenario, (ii) reproducible generation of ICRF plasmas for wall conditioning, by coupling RF power from one or two ICRF antennas and (iii) effect of application of an additional (along with toroidal magnetic field) stationary vertical (B_V B_T) or oscillating poloidal magnetic field (B_p B_T) on antenna coupling and relevant plasma parameters.

Original language	English
Pages (from-to)	51-56
Number of pages	6
Journal	Fusion Engineering and Design
Volume	88
Issue number	1
DOIs	https://doi.org/10.1016/j.fusengdes.2012.10.007
Publication status	Published - Jan 2013

Keywords

Antenna coupling
ICRF discharge
ITER
Wall conditioning

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10.1016/j.fusengdes.2012.10.007

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title = "ICRF physics aspects of wall conditioning plasma characterization in TEXTOR",

abstract = "This paper focuses on encouraging results obtained on the characterization of RF produced plasmas during pulsed-mode wall conditioning discharges in ion cyclotron resonance frequency (ICRF) regime in the limiter tokamak TEXTOR. Recent Ion Cyclotron Wall Conditioning (ICWC) experiment carried out in TEXTOR tokamak, lead to the identification of various dependences of the antenna-plasma coupling efficiency on the plasma parameters for possible ICWC-discharge cleaning in ITER at half field. Our ICWC experiments emphasize on (i) study of antenna coupling during the mode conversion scenario, (ii) reproducible generation of ICRF plasmas for wall conditioning, by coupling RF power from one or two ICRF antennas and (iii) effect of application of an additional (along with toroidal magnetic field) stationary vertical (BV BT) or oscillating poloidal magnetic field (Bp BT) on antenna coupling and relevant plasma parameters.",

keywords = "Antenna coupling, ICRF discharge, ITER, Wall conditioning",

author = "Paul, \{Manash Kumar\} and A. Lyssoivan and R. Koch and \{Van Wassenhove\}, G. and M. Vervier and G. Bertschinger and R. Laengner and B. Unterberg and G. Sergienko and V. Philipps and T. Wauters",

year = "2013",

month = jan,

doi = "10.1016/j.fusengdes.2012.10.007",

language = "English",

volume = "88",

pages = "51--56",

journal = "Fusion Engineering and Design",

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T1 - ICRF physics aspects of wall conditioning plasma characterization in TEXTOR

AU - Paul, Manash Kumar

AU - Lyssoivan, A.

AU - Koch, R.

AU - Van Wassenhove, G.

AU - Vervier, M.

AU - Bertschinger, G.

AU - Laengner, R.

AU - Unterberg, B.

AU - Sergienko, G.

AU - Philipps, V.

AU - Wauters, T.

PY - 2013/1

Y1 - 2013/1

N2 - This paper focuses on encouraging results obtained on the characterization of RF produced plasmas during pulsed-mode wall conditioning discharges in ion cyclotron resonance frequency (ICRF) regime in the limiter tokamak TEXTOR. Recent Ion Cyclotron Wall Conditioning (ICWC) experiment carried out in TEXTOR tokamak, lead to the identification of various dependences of the antenna-plasma coupling efficiency on the plasma parameters for possible ICWC-discharge cleaning in ITER at half field. Our ICWC experiments emphasize on (i) study of antenna coupling during the mode conversion scenario, (ii) reproducible generation of ICRF plasmas for wall conditioning, by coupling RF power from one or two ICRF antennas and (iii) effect of application of an additional (along with toroidal magnetic field) stationary vertical (BV BT) or oscillating poloidal magnetic field (Bp BT) on antenna coupling and relevant plasma parameters.

AB - This paper focuses on encouraging results obtained on the characterization of RF produced plasmas during pulsed-mode wall conditioning discharges in ion cyclotron resonance frequency (ICRF) regime in the limiter tokamak TEXTOR. Recent Ion Cyclotron Wall Conditioning (ICWC) experiment carried out in TEXTOR tokamak, lead to the identification of various dependences of the antenna-plasma coupling efficiency on the plasma parameters for possible ICWC-discharge cleaning in ITER at half field. Our ICWC experiments emphasize on (i) study of antenna coupling during the mode conversion scenario, (ii) reproducible generation of ICRF plasmas for wall conditioning, by coupling RF power from one or two ICRF antennas and (iii) effect of application of an additional (along with toroidal magnetic field) stationary vertical (BV BT) or oscillating poloidal magnetic field (Bp BT) on antenna coupling and relevant plasma parameters.

KW - Antenna coupling

KW - ICRF discharge

KW - ITER

KW - Wall conditioning

UR - https://www.scopus.com/pages/publications/84871270080

U2 - 10.1016/j.fusengdes.2012.10.007

DO - 10.1016/j.fusengdes.2012.10.007

M3 - Article

AN - SCOPUS:84871270080

SN - 0920-3796

VL - 88

SP - 51

EP - 56

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

IS - 1

ER -

ICRF physics aspects of wall conditioning plasma characterization in TEXTOR

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Keywords

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