Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-14T09:30:32.037Z Has data issue: false hasContentIssue false
  • English
  • Français

Flow structure formation in an ion-unmagnetized plasma: The HYPER-II experiments

Part of: Experiments Fundamental Plasma Physics

Published online by Cambridge University Press:  10 September 2014

K. Terasaka ,
M. Y. Tanaka ,
S. Yoshimura ,
M. Aramaki ,
Y. Sakamoto ,
F. Kawazu ,
K. Furuta ,
N. Takatsuka ,
M. Masuda  and
R. Nakano
K. Terasaka*
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
M. Y. Tanaka
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
S. Yoshimura
Affiliation:
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu, 509-5292, Japan
M. Aramaki
Affiliation:
College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba, 275-8575, Japan
Y. Sakamoto
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
F. Kawazu
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
K. Furuta
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
N. Takatsuka
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
M. Masuda
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
R. Nakano
Affiliation:
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
*
†Email address for correspondence: terasaka@aees.kyushu-u.ac.jp
Get access Rights & Permissions [Opens in a new window]

Abstract

The HYPER-II device has been constructed in Kyushu University to investigate the flow structure formation in an ion-unmagnetized plasma, which is an intermediate state of plasma and consists of unmagnetized ions and magnetized electrons. High density plasmas are produced by electron cyclotron resonance heating, and the flow field structure in an inhomogeneous magnetic field is investigated with a directional Langmuir probe method and a laser-induced fluorescence method. The experimental setup has been completed and the diagnostic systems have been installed to start the experiments. A set of coaxial electrodes will be introduced to control the azimuthal plasma rotation, and the effect of plasma rotation to generation of rectilinear flow structure will be studied. The HYPER-II experiments will clarify the overall flow structure in the inhomogeneous magnetic field and contribute to understanding characteristic feature of the intermediate state of plasma.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 1 , January 2015 , 345810101
Copyright
Copyright © Cambridge University Press 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Aramaki, M., Ogiwara, K., Eto, S., Yoshimura, S. and Tanaka, M. Y. 2009 High resolution laser induced fluorescence doppler velocimetry utilizing saturated absorption spectroscopy. Rev. Sci. Instrum. 80, 053505 1–4.Google Scholar
Arefiev, A. V. and Breizman, B. N. 2008 Ambipolar acceleration of ions in a magnetic nozzle. Phys. Plasmas 15, 042109 1–8.Google Scholar
Engeln, R., Mazouffre, S., Vankan, P., Schram, D. C. and Sadeghi, N. 2001 Flow dynamics and invasion by background gas of a supersonically expanding thermal plasma. Plasma Sources Sci. Technol. 10, 595–605.Google Scholar
Ji, H. and Balbus, S. 2013 Angular momentum transport in astrophysics and in the lab. Phys. Today 66, 27–33.Google Scholar
Kulsrud, R. M. 1994 Important plasma problems in astrophysics. Phys. Plasmas 2, 1735–1745.CrossRefGoogle Scholar
Nagaoka, K., Okamoto, A., Yoshimura, S. and Tanaka, M. Y. 2001 Plasma flow measurement using directional langmuir probe under weakly ion-magnetized conditions. J. Phys. Sco. Jpn. 70, 131–137.CrossRefGoogle Scholar
Schmit, P. F. and Fisch, N. J. 2009 Magnetic detachment and plume control in escaping magnetized plasma. J. Plasma Phys. 75, 359–371.Google Scholar
Stern, R. A. and Johnson III, J. A. 1975 Plasma ion diagnostics using resonant fluorescence. Plasma Sources Sci. Technol. 34, 1548–1551.Google Scholar
Tanaka, M., Nishimoto, R., Higashi, S., Harada, N., Ohi, T., Komori, A. and Kawai, Y. 1991 Overdense plasma production using electron cyclotron waves. J. Phys. Sco. Jpn. 60, 1600–1607.Google Scholar
Tanaka, M. Y., Bacal, M., Sasao, M. and Kuroda, T. 1998 High-density plasma production for neutralizing negative ion beam. Rev. Sci. Instrum. 69, 980–982.CrossRefGoogle Scholar
Terasaka, K., Yoshimura, S., Ogiwara, K., Aramaki, M. and Tanaka, M. Y. 2010a Experimental studies on ion acceleration and stream line detachment in a diverging magnetic field. Phys. Plasmas 17, 072106 1–6.Google Scholar
Terasaka, K., Yoshimura, S., Ogiwara, K., Aramaki, M. and Tanaka, M. Y. 2010b Self-calibrated measurement of ion flow using a fine multihole directional langmuir probe. Japan. J. Appl. Phys. 49, 036101 1–6.Google Scholar