Page 2 - Overview of C-2W Results and Diagnostic Systems
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Motivation
• Why do we use HHFW electron heating? – Simulation survey demonstrates that HHFW is a promising electron heating scenario for FRC plasma
Ø Has excellent wave penetration into FRC plasma core; doesn’t suffer from a cut-off at high density. Ø Has near 100% single pass power absorption; bulk electrons heating.
Ø Control RF power partition between electrons and ions through antenna relative phasing;
Ø Decouple heating and fueling.
Ø Help enhance NBI heating and current drive.
• Use LAPD machine as the test bed to conduct following experiments which are crucial for
the optimal engineering design of 4 MW HHFW system for C-2W
q HHFWs to plasma coupling and propagation (phased-array RF antenna, low power operation) q Model validation (benchmarking Petra-M full wave code with experiment measurements)
q Antenna-plasma interaction (phased-array RF antenna, high power operation)
62nd APS-DPP, November 9-13, 2020 2
