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The geometry of ICRF -induced wave-sol interaction: A multi-machine experimental review in view of ITER operation

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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https://hal-cea.archives-ouvertes.fr/cea-03467405
Contributor : Valerie Icard Connect in order to contact the contributor
Submitted on : Monday, December 6, 2021 - 2:57:30 PM
Last modification on : Wednesday, December 8, 2021 - 3:20:45 AM

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  • HAL Id : cea-03467405, version 1

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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, IOP Publishing, In press. ⟨cea-03467405⟩

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