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Advanced probes for edge plasma diagnostics on the CASTOR tokamak

Authors :: Peter Peleman
Emilio Martines
P. Devynck
Martin Hron
J. Brotankova
Codrina Ionita
O Bilyk
I. Duran
P. Balan
Radomir Panek
J. Adamek
J. Stöckel
R. Dejarnac
F. Zacek
J. Horacek
J. P. Gunn
M Kocan
G. Van Oost
Roman Schrittwieser
Source :: Journal of physics. Conference series, 63 (2007): 012001., info:cnr-pdr/source/autori:Stöckel J.; J Adamek; P Balan; O Bilyk; J Brotankova; R Dejarnac; P Devynck; I Duran; J P Gunn; M Hron; J Horacek; C Ionita; M Kocan; E Martines; R Panek; P Peleman; R Schrittwieser; G Van Oost; F Zacek/titolo:Advanced probes for edge plasma diagnostics on the CASTOR tokamak/doi:/rivista:Journal of physics. Conference series (Print)/anno:2007/pagina_da:012001/pagina_a:/intervallo_pagine:012001/volume:63
Publication Year :: 2007
Publisher :: IOP Publishing, 2007.
Abstract: Understanding of underlying physics in the edge plasma of tokamaks requires knowledge of the plasma density, potential, electron and ion temperature, ion flows and their fluctuations with a high spatial and temporal resolution. A family of electric probes, which have been designed and tested for this purpose in the CASTOR tokamak, is reviewed and examples of their performance are given. In particular, we focus on description of the 1D and 2D arrays of Langmuir probes for spatially resolved measurements of the edge turbulence, the Ball pen and emissive probes for direct measurements of the plasma potential, the optimized Gundestrup probe for measurements of parallel and perpendicular ion flow, and the tunnel probe for fast measurement of electron and ion temperatures. Additional information on individual diagnostics is available in the listed references. PACS 52.70.Ds