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A. C. ENGLAND, Z. Y. CHEN, D. C. SEO, J. CHUNG, Y. S. LEEV, J. W. YOO, W. C. KIM, Y. S. BAE, Y. M. JEONV, J. G. KWAK, M. KWON, the KSTAR Tea. Runaway Electron Suppression by ECRH and RMP in KSTAR[J]. Plasma Science and Technology, 2013, 15(2): 119-122. DOI: 10.1088/1009-0630/15/2/08
Citation: A. C. ENGLAND, Z. Y. CHEN, D. C. SEO, J. CHUNG, Y. S. LEEV, J. W. YOO, W. C. KIM, Y. S. BAE, Y. M. JEONV, J. G. KWAK, M. KWON, the KSTAR Tea. Runaway Electron Suppression by ECRH and RMP in KSTAR[J]. Plasma Science and Technology, 2013, 15(2): 119-122. DOI: 10.1088/1009-0630/15/2/08
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Runaway Electron Suppression by ECRH and RMP in KSTAR

    Abstract
  • We have observed reduction of the runaway electron synchrotron radiation, hard X-ray (HXR) intensity, and HXR energy after applying 110 GHz 2nd harmonic electron cyclotron resonant heating (ECRH) during runaway electron (RE) discharges at low density with startup runaway electrons. However, we did not see a significant reduction of X-rays from 170 GHz 2nd harmonic ECRH at a higher field. A recently installed IR TV camera was used to observe the forward cone of synchrotron radiation from high energy REs in KSTAR. We have observed changes to the synchrotron images and reduction of the HXR by application of resonant magnetic perturbations (RMP) from in-vessel control coils (IVCC) installed inside KSTAR in the n=1 configuration.
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