Strong scattering of high power millimeter waves in tokamak plasmas with tearing modes

E. Westerhof; S.K. Nielsen; JW Oosterbeek; M. Salewski; M.R. De Baar; W.A. Bongers; A. Bürger; B.A. Hennen; S.B. Korsholm; David Thoen; null More Authors

doi:10.1103/PhysRevLett.103.125001

Strong scattering of high power millimeter waves in tokamak plasmas with tearing modes

E. Westerhof, S.K. Nielsen, JW Oosterbeek, M. Salewski, M.R. De Baar, W.A. Bongers, A. Bürger, B.A. Hennen, S.B. Korsholm, David Thoen, More Authors

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

113 Citations (Scopus)

Abstract

In tokamak plasmas with a tearing mode, strong scattering of high power millimeter waves, as used for heating and noninductive current drive, is shown to occur. This new wave scattering phenomenon is shown to be related to the passage of the O point of a magnetic island through the high power heating beam. The density determines the detailed phasing of the scattered radiation relative to the O-point passage. The scattering power depends strongly nonlinearly on the heating beam power.

Original language	English
Article number	125001
Number of pages	1
Journal	Physical Review Letters
Volume	103
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.103.125001
Publication status	Published - 2009
Externally published	Yes

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10.1103/PhysRevLett.103.125001

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title = "Strong scattering of high power millimeter waves in tokamak plasmas with tearing modes",

abstract = "In tokamak plasmas with a tearing mode, strong scattering of high power millimeter waves, as used for heating and noninductive current drive, is shown to occur. This new wave scattering phenomenon is shown to be related to the passage of the O point of a magnetic island through the high power heating beam. The density determines the detailed phasing of the scattered radiation relative to the O-point passage. The scattering power depends strongly nonlinearly on the heating beam power.",

author = "E. Westerhof and S.K. Nielsen and JW Oosterbeek and M. Salewski and {De Baar}, M.R. and W.A. Bongers and A. B{\"u}rger and B.A. Hennen and S.B. Korsholm and David Thoen and {More Authors}",

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doi = "10.1103/PhysRevLett.103.125001",

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T1 - Strong scattering of high power millimeter waves in tokamak plasmas with tearing modes

AU - Westerhof, E.

AU - Nielsen, S.K.

AU - Oosterbeek, JW

AU - Salewski, M.

AU - De Baar, M.R.

AU - Bongers, W.A.

AU - Bürger, A.

AU - Hennen, B.A.

AU - Korsholm, S.B.

AU - Thoen, David

AU - More Authors, null

PY - 2009

Y1 - 2009

N2 - In tokamak plasmas with a tearing mode, strong scattering of high power millimeter waves, as used for heating and noninductive current drive, is shown to occur. This new wave scattering phenomenon is shown to be related to the passage of the O point of a magnetic island through the high power heating beam. The density determines the detailed phasing of the scattered radiation relative to the O-point passage. The scattering power depends strongly nonlinearly on the heating beam power.

AB - In tokamak plasmas with a tearing mode, strong scattering of high power millimeter waves, as used for heating and noninductive current drive, is shown to occur. This new wave scattering phenomenon is shown to be related to the passage of the O point of a magnetic island through the high power heating beam. The density determines the detailed phasing of the scattered radiation relative to the O-point passage. The scattering power depends strongly nonlinearly on the heating beam power.

U2 - 10.1103/PhysRevLett.103.125001

DO - 10.1103/PhysRevLett.103.125001

M3 - Article

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 125001

ER -

Strong scattering of high power millimeter waves in tokamak plasmas with tearing modes

Abstract

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