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Power deposition of H minority heating with a new compact ICRF antenna in KSTAR

The new compact ICRH antenna (CIA) with low electric field and conjugate-T has been installed in KSTAR. It is essential for studying the effect on the KSTAR plasma of H minority heating as a main ICRH scheme. The TRANSP-TORIC code has been adopted for analyzing the ICRH effect. The calculation using...

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Bibliographic Details
Published in:Journal of the Korean Physical Society 2021, 78(11), , pp.1067-1071
Main Authors: Lee, H. Y., Kang, J. S., Wi, H. H., Wang, S. J., Kwak, J. G., Saito, K.
Format: Article
Language:English
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Summary:The new compact ICRH antenna (CIA) with low electric field and conjugate-T has been installed in KSTAR. It is essential for studying the effect on the KSTAR plasma of H minority heating as a main ICRH scheme. The TRANSP-TORIC code has been adopted for analyzing the ICRH effect. The calculation using TRANSP-TORIC has been conducted with an additional 1 MW of ICRH power to the KSTAR operation at B 0  = 2.0 T. About 75% of the ICRH power has coupled to the H minority heating, and most of the power of H minority heating has contributed to the energy of D majority ions and electrons. The deposited profile of the minority heating power varies with the concentration rate of the H minority ions and shows the possibility of producing energetic particles which appears to the increasing energy of D majority ions. The power of the H minority heating has good coupling to the majority ions in the broad range of 5 
ISSN:0374-4884
1976-8524
DOI:10.1007/s40042-021-00141-y