First results with 3-strap ICRF antennas in ASDEX Upgrade

V. Bobkov, F. Braun, R. Dux, A. Herrmann, H. Faugel, H. Fünfgelder, A. Kallenbach, R. Neu, J.-M. Noterdaeme, R. Ochoukov, Th. Pütterich, A. Tuccilo, O. Tudisco, Y. Wang, Q. Yang

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24 Citations (Scopus)

Abstract

The 3-strap antennas in ASDEX Upgrade allow ICRF operation with low tungsten (W) content in the confined plasma with W-coated antenna limiters. With the 3-strap antenna configuration, the local W impurity source at the antenna is drastically reduced and the core W concentration is similar to that of the boron coated 2-strap antenna at a given ICRF power. Operation of the 3-strap antennas with the power ratio between the central and the outer straps of 1.5 : 1 and 2 : 1 is adopted to minimize the ICRF-specific W release.
Original languageEnglish
Article number084001
Pages (from-to)-
JournalNuclear Fusion
Volume56
Issue number8
DOIs
Publication statusPublished - 5 Jul 2016
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Bobkov, V., Braun, F., Dux, R., Herrmann, A., Faugel, H., Fünfgelder, H., ... Yang, Q. (2016). First results with 3-strap ICRF antennas in ASDEX Upgrade. Nuclear Fusion, 56(8), -. [084001]. https://doi.org/10.1088/0029-5515/56/8/084001