Cross-section analysis of the Magnum-PSI plasma beam using a 2D multi-probe system

TitleCross-section analysis of the Magnum-PSI plasma beam using a 2D multi-probe system
Publication TypeJournal Article
Year of Publication2015
AuthorsC. Costin, V. Anita, F. Ghiorghiu, G. Popa, G. De Temmerman, M.A van den Berg, J. Scholten, S. Brons
JournalPlasma Sources Science and Technology
Volume24
Issue1
Number1
Pagination015014
Abstract

The linear plasma generator Magnum-PSI was designed for the study of plasma-surface interactions under relevant conditions of fusion devices. A key factor for such studies is the knowledge of a set of parameters that characterize the plasma interacting with the solid surface. This paper reports on the electrical diagnosis of the plasma beam in Magnum-PSI using a multi-probe system consisting of 64 probes arranged in a 2D square matrix. Cross-section distributions of floating potential and ion current intensity were registered for a hydrogen plasma beam under various discharge currents (80-175 A) and magnetic field strengths (0.47-1.41 T in the middle of the coils). Probe measurements revealed a high level of flexibility of plasma beam parameters with respect to the operating conditions.

DOI10.1088/0963-0252/24/1/015014
Division

PSI

Department

PSI-FI

PID

8a55d702d92adf599ac1844a32d79819

Alternate TitlePlasma Sources Sci. Technol.

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