@inproceedings{ae1b89c43b4a4868ad7bd2c6980e7f1e,
title = "First experimental results on the IShTAR testbed",
abstract = "IShTAR (Ion cyclotron Sheath Test ARrangement) is a linear magnetized plasma test facility dedicated to the investigation of RF wave/plasma interaction [1] in the Ion Cyclotron Range of Frequencies (ICRF). It provides a better accessibility for the instrumentation than tokamaks while being representative of the neighboring region of the wave emitter. It is equipped with a magnetized plasma source (1 m long, 0.4 m diameter) powered by a helical antenna up to 3 kW at 11 MHz. We present the results of the first analysis of the plasma characteristics (plasma density, electron temperature) in function of the operating parameters (injected power, neutral pressure and magnetic field) as measured with fixed and movable Langmuir probes, spectrometer and cameras. The plasma is presently produced only by the helical antenna (no ICRF). We show that the plasma exists in three regime depending on the power level: the first two ones are stable and separated by a jump in density; a first spatial profile of the plasma density has been established for these modes; The third mode is unstable, characterized by strong oscillations of the plasma tube position.",
author = "R. D'Inca and J. Jacquot and R. Ochoukov and I. Morgal and K. Crombe and F. Louche and {Van Eester}, D. and S. Heuraux and S. Devaux and J. Moritz and E. Faudot and H. F{\"u}nfgelder and H. Faugel and Noterdaeme, {J. M.}",
note = "Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.; 21st Topical Conference on Radiofrequency Power in Plasmas ; Conference date: 27-04-2015 Through 29-04-2015",
year = "2015",
month = dec,
day = "10",
doi = "10.1063/1.4936498",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "Pinsker, {Robert I.}",
booktitle = "Radio Frequency Power in Plasmas",
}