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LH power losses in front of the JET launcher

  • P. Jacquet
  • , G. Arnoux
  • , L. Colas
  • , L. Delpech
  • , A. Ekedahl
  • , D. Frigione
  • , M. Goniche
  • , K. Kirov
  • , F. Leguen
  • , J. Mailloux
  • , M. L. Mayoral
  • , J. Ongena
  • , V. Petrzilka
  • , C. Portafaix
  • , F. Rimini
  • Culham Centre for Fusion Energy
  • Commissariat à l'Énergie Atomique et aux Énergies Alternatives
  • Associazione EURATOM-ENEA sulla Fusione
  • Institute of Plasma Physics, Academy of Sciences of the Czech Republic

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdragepeer review

5 Citaten (Scopus)

Samenvatting

In recent JET experiments, Lower Hybrid (LH) power losses in the Scrape-Off Layer (SOL) were characterized using infra-red (IR) thermography. Hot spots were observed on objects intercepting the field lines passing in front of the LH launcher, i.e. on poloidal limiters and on dumplates located at the top of the tokamak; their locations being in good agreement with magnetic field line tracing using the EFIT equilibrium code. The dumplate temperature was monitored while scanning the launcher position so that the radial distance between field lines intercepting the hot spots and the launcher was increased up to 3.5 cm. The dissipation layer in front of the launcher was estimated to be at least 3.5 cm wide, in agreement with recent measurements on Tore-Supra, but not with simple models that predict a dissipation layer in the mm range.

Originele taal-2Engels
TitelRadio Frequency Power in plasmas - Proceedings of the 18th Topical Conference
Pagina's399-402
Aantal pagina's4
DOI's
StatusGepubliceerd - 2009
Evenement18th Topical Conference on Radio Frequency Power in plasmas - Gent, België
Duur: 24 jun. 200926 jun. 2009

Publicatie series

NaamAIP Conference Proceedings
Volume1187
ISSN van geprinte versie0094-243X
ISSN van elektronische versie1551-7616

Congres

Congres18th Topical Conference on Radio Frequency Power in plasmas
Land/RegioBelgië
StadGent
Periode24/06/0926/06/09

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