Original title: Atomic Beam Probe Diagnostic for COMPASS Tokamak
Authors: Háček, Pavel ; Weinzettl, Vladimír ; Stöckel, Jan ; Anda, G. ; Veres, G. ; Zoletnik, S. ; Berta, M.
Document type: Papers
Conference/Event: Annual Conference of Doctoral Students - WDS 2010 /19th./, Prague (CZ), 2010-06-01 / 2010-06-04
Year: 2010
Language: eng
Abstract: The COMPASS tokamak has been re-installed in IPP Prague after its transport from Culham in UK. New diagnostic tools are under development to address the scientific program focused on H-mode and pedestal physics. Atomic Beam Probe (ABP) is an innovatory diagnostic for measurement of poloidal magnetic field and plasma current fluctuations in the plasma edge. It is planned to be an extension of the beam emission spectroscopy system by collecting the lithium ions stemming from beam ionization. In the first approximation, ionization is proportional to the local plasma density. The poloidal magnetic field moves the ions toroidally. Therefore, the two-dimensional poloidal-toroidal measurement of the ion current in the exit port reveals information on both the density and magnetic field profiles, thereby also on the edge current profile. This article reviews the concept of the ABP diagnostic and the status of its installation on the COMPASS tokamak.
Keywords: beam diagnostics; COMPASS; plasma diagnostics; tokamak
Project no.: CEZ:AV0Z20430508 (CEP), GA202/09/1467 (CEP)
Funding provider: GA ČR
Host item entry: WDS 2010 - Proceedings of Contributed Papers , ISBN 978-80-7378-140-8

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://server.ipp.cas.cz/~vwei/work/wds2010_201_f2.pdf
Original record: http://hdl.handle.net/11104/0205291

Permalink: http://www.nusl.cz/ntk/nusl-81457


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