Mixing of multiple hydrogen plasma beams in a strong magnetic field by E x B drift-induced rotation

TitleMixing of multiple hydrogen plasma beams in a strong magnetic field by E x B drift-induced rotation
Publication TypeJournal Article
Year of Publication2011
AuthorsE. Oyarzabal, W.AJ Vijvers, R.S. Al, H.J van der Meiden, M.J. van der Pol, F.L Tabares, G.J van Rooij
JournalPlasma Physics and Controlled Fusion
Volume53
Issue10
Number10
Pagination5013
Date PublishedOct
Type of ArticleArticle
ISBN Number0741-3335
KeywordsITER
Abstract

Mixing of up to three similar to 1 cm diameter plasma beams of pure hydrogen as well as mixtures of hydrogen and argon in magnetic fields of <1.6 T are studied. An external ring electrode is used to create a radial electric field that induces E x B rotation of the individual beams around a common axis. Rotation profiles with maximum speeds up to 10 km s(-1) are measured from the hydrogen atomic line shapes and confirm rotation around the ring axis. Mixing to a total beam diameter of similar to 2.5-3 cm is observed in density profiles measured with Thomson scattering near a target at 0.5 m downstream. Currents of up to 60 A were received by the ring, involving an addition power input of up to 5.4 kW to the plasma.

DOI10.1088/0741-3335/53/10/105013
Division

PSI

Department

PSI-E

PID

cb050002678c439af83f839b8cb0025b

Alternate TitlePlasma Phys. Control. Fusion

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