Remote operation of the GOLEM tokamak with hydrogen and helium plasmas

V. Svoboda, A. Dvornova, R. Dejarnac, M. Prochazka, S. Zaprianov, R. Akhmethanov, M. Bogdanova, M. Dimitrova, Z. Dimitrov, O. Grover, L. Hlavata, K. Ivanov, K. Kruglov, P. Marinova, P. Masherov, A. Mogulkin, J. Mlynar, J. Stockel, A. Volynets

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Abstract

The GOLEM tokamak was operated remotely via Internet connection during the 6th International Workshop and Summer School on Plasma Physics. Performances of hydrogen and helium discharges are compared in this paper. It is found, at similar vacuum conditions, that helium discharges are shorter but the breakdown of the working gas can be quite easily achieved at almost the same loop voltage. The plasma current in helium discharges is slightly lower than in the case of hydrogen. Turbulent fluctuations of the floating potential measured by means of an array of Langmuir probes reveal a noticeably different character in the two discharges.

Original languageEnglish
Article number012002
Pages (from-to)1-9
JournalJournal of Physics: Conference Series
Volume768
Issue number1
DOIs
Publication statusPublished - 4 Nov 2016

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