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ICRF Task Force Summary: Advancing C-Mod Scenarios through Innovative Proposals

This summary presents the latest advancements from the ICRF Task Force led by Yijun Lin on C-Mod scenarios. Key discussions included testing the J-antenna at unexplored frequencies of 40, 53, and 60 MHz, with a focus on long campaign feasibility. New proposals highlighted antenna loading effects on ELMs, synergies with MC and LHCD, and the development of innovative techniques for sawtooth control. The team outlined prioritized mini-proposals aimed at enhancing plasma performance, flow control, and high-power experimental evaluation, fostering significant advancements in ICRF research.

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ICRF Task Force Summary: Advancing C-Mod Scenarios through Innovative Proposals

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  1. ICRF Task Force Summary Presented by Yijun Lin

  2. ICRF Scenarios on C-Mod (I) this forum

  3. ICRF Scenarios on C-Mod (II) • J antenna has never been run at 53 MHz, 60 MHz, and 40 MHz. • Only feasible to try them out in long campaigns.

  4. New Ideas/Presentations • Y. Lin: • ELMs on antenna loading and FFT commissioning (mostly piggy-back) • MC and LHCD synergy (J antenna at 50 MHz. Needs LH) • ICRF MC and ITB formation and density control (J antenna at 60 MHz) • S. Wukitch: • ICRF sheaths using marker tiles (78 MHz, normal and reversed field) • ICCD for sawtooth control (78 MHz, CD phase) • MCCD sawtooth control in monster sawtooth (50 MHz, D(He3), CD phase) • M. Porkolab (P. Bonoli presented): • 2nd harmonic minority heating (J antenna 78 MHz or 40-45 MHz. D(H) or D(He3). Low field). • C. K. Phillips: • Fast wave heating and CD below all IC resonances (40 MHz, high field. Needs LH to boost Te)

  5. Open ICRF Mini-Proposals • D(He3) minority heating evaluation (Wukitch, MP390) • ICRF on sawtooth behavior (Wukitch, MP380) • High power experiment (Wukitch, MP379) • MC flow drive (Lin, MP378) • Plasma performance (Lin, MP376/388, MP417) • MCCD (Parisot, MP356, MP447) • CNPA test and calibration (Tang, MP389) Total run time from new ideas: ~10 days • Prioritizing meeting: • Ranking the ideas/MPs. • J-antenna frequencies.

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