@article{6967, author = {J. W. Oosterbeek and A. Burger and E. Westerhof and M.R. de Baar and M. A. van den Berg and W. A. Bongers and M. F. Graswinckel and B.A. Hennen and O. G. Kruijt and J. Thoen and R. Heidinger and S. B. Korsholm and F. Leipold and S.K. Nielsen}, title = {A line-of-sight electron cyclotron emission receiver for electron cyclotron resonance heating feedback control of tearing modes}, abstract = {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. This demonstrates the successful operation of the diagnostic and, in particular, a sufficient suppression of the gyrotron component preventing it from interfering with ECE measurements. When integrated into a feedback system for the control of plasma instabilities this line-of-sight ECE diagnostic removes the need to localize the instabilities in absolute coordinates. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2976665]}, year = {2008}, journal = {Review of Scientific Instruments}, volume = {79}, number = {9}, pages = {12}, month = {Sep}, isbn = {0034-6748}, url = {://000260291800013 }, note = {ISI Document Delivery No.: 363UGTimes Cited: 0Cited Reference Count: 30}, language = {English}, }