Langmuir probe investigations of different magnetic filter field configurations at BATMAN upgrade | Zendy

L. Schiesko | Zendy; Christian Wimmer | Zendy; U. Fantz | Zendy

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Langmuir probe investigations of different magnetic filter field configurations at BATMAN upgrade

Author(s) -

L. Schiesko,

Christian Wimmer,

U. Fantz

Publication year - 2018

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.5083740

Subject(s) - langmuir probe , upgrade , plasma , magnetic field , grid , topology (electrical circuits) , filter (signal processing) , plasma diagnostics , physics , atomic physics , materials science , electrical engineering , computer science , engineering , nuclear physics , mathematics , geometry , quantum mechanics , operating system

Langmuir probe measurements were performed at the newly commissioned BATMAN Upgrade test bed to determine the plasma parameters in front of the plasma grid (PG). At BATMAN Upgrade, the magnetic filter field can either be generated by permanent magnets or by a current of several kilo-amperes flowing through the plasma grid. Although achieving similar strength in front of the plasma grid, the two magnetic field configurations show very different topology. The topology strongly affects the transport of the charged particles from the driver towards the plasma grid and Langmuir probes show different positive ion density and asymmetry in front of the PG.

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