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Journal Articles Nuclear Fusion Year : 2021

The geometry of ICRF -induced wave-sol interaction

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W Helou
  • Function : Author

Abstract

As part of ITPA-Integrated Operational Scenario (IOS) activities, this contribution reviews recent experimental characterization of Radio-Frequency (RF)-induced Scrape-Off Layer (SOL) modifications on various tokamaks worldwide and on the LArge Plasma Device (LAPD) at UCLA. The phenomenology, as observed using a large variety of measurement techniques, is consistent with the expectations from RF-sheath rectification. Emphasis is then put on the complex 3-Dimensional (3D) spatial patterns of RF-SOL interaction, in relation to the magnetic topology and the spatial distribution of RF currents over the metallic structures surrounding the RF wave-launchers. Dependence on the local plasma parameters in the antenna vicinity is also briefly addressed. The final part discusses implications for future devices.
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Dates and versions

cea-03467405 , version 1 (06-12-2021)

Identifiers

  • HAL Id : cea-03467405 , version 1

Cite

L Colas, G Urbanczyk, M Goniche, J Hillairet, J.-M Bernard, et al.. The geometry of ICRF -induced wave-sol interaction: A multi-machine experimental review in view of ITER operation. Nuclear Fusion, In press. ⟨cea-03467405⟩
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