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Studies of RF sheaths and diagnostics on IShTAR

Kristel Crombé UGent, S Devaux, R D'Inca, E Faudot, H Faugel, H Funfgelder, S Heuraux, J Jacquot, F Louche, J Moritz, et al. (2015) AIP Conference Proceedings. In AIP Conference Proceedings 1689.
abstract
IShTAR (Ion cyclotron Sheath Test ARrangement) is a linear magnetised plasma test facility for RF sheaths studies at the Max-Planck-Institut four Plasmaphysik in Garching. In contrast to a tokamak, a test stand provides more liberty to impose the parameters and gives better access for the instrumentation and antennas. The project will support the development of diagnostic methods for characterising RF sheaths and validate and improve theoretical predictions. The cylindrical vacuum vessel has a diameter of 1 m and is 1.1 m long. The plasma is created by an external cylindrical plasma source equipped with a helical antenna that has been designed to excite the m =1 helicon mode. In inductive mode, plasma densities and electron temperatures have been characterised with a planar Langmuir probe as a function of gas pressure and input RF power. A 2D array of RF compensated Langmuir probes and a spectrometer are planned. A single strap RF antenna has been designed; the plasma-facing surface is aligned to the cylindrical plasma to ease the modelling. The probes will allow direct measurements of plasma density profiles in front of the RF antenna, and thus a detailed study of the density modifications induced by RF sheaths, which influences the coupling. The RF antenna frequency has been chosen to study different plasma wave interactions: the accessible plasma density range includes an evanescent and propagative behaviour of slow or fast waves, and allows the study of the effect of the lower hybrid resonance layer.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
in
AIP Conference Proceedings
series title
AIP Conference Proceedings
volume
1689
issue title
RADIOFREQUENCY POWER IN PLASMAS
article number
030006
pages
8 pages
publisher
AMER INST PHYSICS
place of publication
MELVILLE
conference name
21st Topical Conference on Radiofrequency Power in Plasmas
conference location
CA
conference start
2015-04-27
conference end
2015-04-29
Web of Science type
Proceedings Paper
Web of Science id
000366583100009
ISSN
0094-243X
ISBN
978-0-7354-1336-8
DOI
10.1063/1.4936471
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7107573
handle
http://hdl.handle.net/1854/LU-7107573
date created
2016-03-01 10:15:10
date last changed
2017-01-02 09:53:28
@inproceedings{7107573,
  abstract     = {IShTAR (Ion cyclotron Sheath Test ARrangement) is a linear magnetised plasma test facility for RF sheaths studies at the Max-Planck-Institut four Plasmaphysik in Garching. In contrast to a tokamak, a test stand provides more liberty to impose the parameters and gives better access for the instrumentation and antennas. The project will support the development of diagnostic methods for characterising RF sheaths and validate and improve theoretical predictions. The cylindrical vacuum vessel has a diameter of 1 m and is 1.1 m long. The plasma is created by an external cylindrical plasma source equipped with a helical antenna that has been designed to excite the m =1 helicon mode. In inductive mode, plasma densities and electron temperatures have been characterised with a planar Langmuir probe as a function of gas pressure and input RF power. A 2D array of RF compensated Langmuir probes and a spectrometer are planned. A single strap RF antenna has been designed; the plasma-facing surface is aligned to the cylindrical plasma to ease the modelling. The probes will allow direct measurements of plasma density profiles in front of the RF antenna, and thus a detailed study of the density modifications induced by RF sheaths, which influences the coupling. The RF antenna frequency has been chosen to study different plasma wave interactions: the accessible plasma density range includes an evanescent and propagative behaviour of slow or fast waves, and allows the study of the effect of the lower hybrid resonance layer.},
  articleno    = {030006},
  author       = {Cromb{\'e}, Kristel and Devaux, S and D'Inca, R and Faudot, E and Faugel, H and Funfgelder, H and Heuraux, S and Jacquot, J and Louche, F and Moritz, J and Ochoukov, R and Tripsky, M and Van Eester, D and Wauters, T and Noterdaeme, Jean-Marie},
  booktitle    = {AIP Conference Proceedings},
  isbn         = {978-0-7354-1336-8},
  issn         = {0094-243X},
  language     = {eng},
  location     = {CA},
  pages        = {8},
  publisher    = {AMER INST PHYSICS},
  title        = {Studies of RF sheaths and diagnostics on IShTAR},
  url          = {http://dx.doi.org/10.1063/1.4936471},
  volume       = {1689},
  year         = {2015},
}

Chicago
Crombé, Kristel, S Devaux, R D’Inca, E Faudot, H Faugel, H Funfgelder, S Heuraux, et al. 2015. “Studies of RF Sheaths and Diagnostics on IShTAR.” In AIP Conference Proceedings. Vol. 1689. MELVILLE: AMER INST PHYSICS.
APA
Crombé, Kristel, Devaux, S., D’Inca, R., Faudot, E., Faugel, H., Funfgelder, H., Heuraux, S., et al. (2015). Studies of RF sheaths and diagnostics on IShTAR. AIP Conference Proceedings (Vol. 1689). Presented at the 21st Topical Conference on Radiofrequency Power in Plasmas, MELVILLE: AMER INST PHYSICS.
Vancouver
1.
Crombé K, Devaux S, D’Inca R, Faudot E, Faugel H, Funfgelder H, et al. Studies of RF sheaths and diagnostics on IShTAR. AIP Conference Proceedings. MELVILLE: AMER INST PHYSICS; 2015.
MLA
Crombé, Kristel, S Devaux, R D’Inca, et al. “Studies of RF Sheaths and Diagnostics on IShTAR.” AIP Conference Proceedings. Vol. 1689. MELVILLE: AMER INST PHYSICS, 2015. Print.