A line-of-sight electron cyclotron emission receiver for electron cyclotron resonance heating feedback control of tearing modes

J.W. Oosterbeek, A. Bürger, E. Westerhof, M.R. Baar, de, M.A. Berg, van den, W.A. Bongers, M.F. Graswinckel, B.A. Hennen, O.G. Kruijt, D.J. Thoen, R. Heidinger, S.B. Korsholm, F. Leipold, S.K. Nielsen

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Samenvatting

An electron cyclotron emission (ECE) receiver inside the electron cyclotron resonance heating (ECRH) transmission line has been brought into operation. The ECE is extracted by placing a quartz plate acting as a Fabry¿Perot interferometer under an angle inside the electron cyclotron wave (ECW) beam. ECE measurements are obtained during high power ECRH operation. Thisdemonstrates the successful operation of the diagnostic and, in particular, a sufficient suppression of the gyrotron component preventing it from interfering with ECE measurements. When integratedinto a feedback system for the control of plasma instabilities this line-of-sight ECE diagnosticremoves the need to localize the instabilities in absolute coordinates.
Originele taal-2Engels
Pagina's (van-tot)093503-1/12
TijdschriftReview of Scientific Instruments
Volume79
Nummer van het tijdschrift9
DOI's
StatusGepubliceerd - 2008

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    Oosterbeek, J. W., Bürger, A., Westerhof, E., Baar, de, M. R., Berg, van den, M. A., Bongers, W. A., Graswinckel, M. F., Hennen, B. A., Kruijt, O. G., Thoen, D. J., Heidinger, R., Korsholm, S. B., Leipold, F., & Nielsen, S. K. (2008). A line-of-sight electron cyclotron emission receiver for electron cyclotron resonance heating feedback control of tearing modes. Review of Scientific Instruments, 79(9), 093503-1/12. https://doi.org/10.1063/1.2976665