Visualization of magnetic surfaces during current ramp-up phase using thermal lithium sheet beam in CPD

Tetsushi Kikukawa, Hideki Zushi, Tomohiro Morisaki, Rajendraprasad Bhattacharyay, Tomofumi Ryoukai, Tomokazu Yoshinaga, Makoto Hasegawa, Kazuaki Hanada, Hiroshi Idei, Experimental Group CPD Experimental Group

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Abstract

Two dimensional electron density profile measurement has been performed in the spherical tokamak CPD (Compact PWI experimental Device) using Li sheet beam imaging technique. The topological change from the open magnetic field line configuration to the closed one is visualized by this technique. The plasma current can be driven by RF waves itself in a weak mirror configuration and a clear change is observed in plasma boundary as well as magnetic field topology associated with the transition of the current from low (~1 kA) to high (~3kA) value.

Original languageEnglish
Article number010
JournalPlasma and Fusion Research
Volume3
DOIs
Publication statusPublished - Jan 1 2008

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Kikukawa, T., Zushi, H., Morisaki, T., Bhattacharyay, R., Ryoukai, T., Yoshinaga, T., ... CPD Experimental Group, E. G. (2008). Visualization of magnetic surfaces during current ramp-up phase using thermal lithium sheet beam in CPD. Plasma and Fusion Research, 3, [010]. https://doi.org/10.1585/pfr.3.010