Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-12T15:20:31.342Z Has data issue: false hasContentIssue false
  • English
  • Français

New aspects on plasma wave and instability phenomena in basic-plasma experiments

Published online by Cambridge University Press:  15 January 2010

R. HATAKEYAMA,
T. KANEKO and
W. OOHARA
R. HATAKEYAMA
Affiliation:
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan (hatake@ecei.tohoku.ac.jp)
T. KANEKO
Affiliation:
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan (hatake@ecei.tohoku.ac.jp)
W. OOHARA
Affiliation:
Department of Electrical and Electronic Engineering, Yamaguchi University, Ube 755-8611, Japan
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

Our basic-plasma experiments relating to fusion-oriented and space plasmas have yielded deep and unique insight into wave and instability physics in ordinary electron-ion and unusual pair-particle plasmas. Here recent results on flow shears, polarization reversal and pair-ions are presented in the way that light is shed on the underlying physics.

References

[1]Agrimson, E., D'Angelo, N. and Merlino, R. L. 2001 Excitation of ion-acoustic-like waves by subcritical currents in a plasma having equal electron and ion temperatures. Phys. Rev. Lett. 86, 5282–5285.CrossRefGoogle Scholar
[2]Teodorescu, C., Reynolds, E. W. and Koepke, M. E. 2002 Observation of inverse ion-cyclotron damping induced by parallel-velocity shear. Phys. Rev. Lett. 89, 1050011–4.CrossRefGoogle ScholarPubMed
[3]Kaneko, T., Tsunoyama, H. and Hatakeyama, R. 2003 Drift-wave instability excited by field-aligned ion flow velocity shear in the absence of electron current. Phys. Rev. Lett. 90, 125001:1–4.CrossRefGoogle ScholarPubMed
[4]Kaneko, T., Reynolds, E. W., Hatakeyama, R. and Koepke, M. E. 2005 Velocity-shear-driven drift waves with simultaneous azimuthal modes in a barium-ion Q-machine plasma. Phys. Plasmas 12, 102106:1–6.CrossRefGoogle Scholar
[5]Hatakeyama, R. and Kaneko, T. 2004 Sheared flow excitation and suppression of electrostatic instabilities in laboratory collisionless magnetoplasmas. Phys. Scripta T107, 200–203.CrossRefGoogle Scholar
[6]Kaneko, T., Murai, H., Hatakeyama, R. and Sato, N. 2001 Experimental evidence for spatial damping of left-hand circularly polarized waves in an electron cyclotron resonance region. Phys. Plasmas 8, 1455–1458.CrossRefGoogle Scholar
[7]Iwamoto, N. 1993 Collective modes in nonrelativistic electron-positron plasmas. Phys. Rev. E 47, 604–611.Google ScholarPubMed
[8]Stewart, G. A. 1993 Nonlinear electrostatic waves in equal-mass plasmas. J. Plasma Phys. 50, 521–539.CrossRefGoogle Scholar
[9]Zank, G. P. and Greaves, R. G. 1995 Linear and nonlinear modes in nonrelativistic electron-positiron plasmas. Phys. Rev. E 51, 6079–6090.Google ScholarPubMed
[10]Surko, C. M., Leventhal, M. and Passner, A. 1989 Positron plasma in the laboratory. Phys. Rev. Lett. 62, 901–904.CrossRefGoogle ScholarPubMed
[11]Boehmer, H., Adams, M. and Rynn, N. 1995 Positron trapping in a magnetic mirror configuration. Phys. Plasmas 2, 4369–4371.CrossRefGoogle Scholar
[12]Greaves, R. G. and Surko, C. M. 2001 Radial compression and inward transport of positron plasmas using a rotating electric field. Phys. Plasmas 8, 1879–1885.CrossRefGoogle Scholar
[13]Kaneko, T., Odaka, Y., Tada, E. and Hatakeyama, R. 2002 Generation and control of field-aligned flow velocity shear in a fully ionized collisionless plasma. Rev. Sci. Instrum. 73, 4218–4222.CrossRefGoogle Scholar
[14]Kaneko, T., Tamura, S., Ito, A. and Hatakeyama, R. 2008 Drift-wave instabilities modified by parallel and perpendicular flow velocity shears in magnetized plasmas. Plasma Fusion Res. 3, S1011:1–5.CrossRefGoogle Scholar
[15]Takahashi, K., Kaneko, T. and Hatakeyama, R. 2005 Polarization-reversal-induced damping of left-hand polarized wave on electron-cyclotron resonance. Phys. Rev. Lett. 94, 215001:1–4.CrossRefGoogle ScholarPubMed
[16]Takahashi, K., Kaneko, T. and Hatakeyama, R. 2005 Effects of polarization reversal on localized-absorption characteristics of electron cyclotron wave in bounded plasmas. Phys. Plasmas 12, 102107:1–7.CrossRefGoogle Scholar
[17]Oohara, W. and Hatakeyama, R. 2003 Pair-ion plasma generation using fullerenes. Phys. Rev. Lett. 91, 205005:1–4.CrossRefGoogle ScholarPubMed
[18]Oohara, W. and Hatakeyama, R. 2005 Electrostatic waves in a paired fullerene-ion plasma. Phys. Rev. Lett. 95, 175003:1–4.CrossRefGoogle Scholar
[19]Oohara, W. and Hatakeyama, R. 2007 Basic studies of the generation and collective motion of pair-ion plasmas. Phys. Plasmas 14, 055704:1–7.CrossRefGoogle Scholar
[20]Oohara, W., Kuwabara, Y. and Hatakeyama, R. 2007 Collective mode properties in a paired fullerene-ion plasma. Phys. Rev. E 75, 056403:1–9.Google Scholar
[21]Oohara, W. and Fukumasa, O. 2009 Catalytic effect on ionization of hydrogen. J. Plasma Fusion Res. series 8, 860–864.Google Scholar