MISC

2000年2月

Excitation of current-driven electrostatic ion-cyclotron waves in presence of a transverse direct current electric fields in a magnetized plasma

PHYSICS OF PLASMAS
  • SC Sharma
  • ,
  • M Sugawa
  • ,
  • VK Jain

7
2
開始ページ
457
終了ページ
460
記述言語
英語
掲載種別
DOI
10.1063/1.873830
出版者・発行元
AMER INST PHYSICS

The temporal evolution of the current-driven electrostatic ion-cyclotron (CDEIC) instability is investigated in the presence of a transverse dc electric field in a collisional magnetized plasma. It was found that the inclusion of a transverse dc electric field in addition to the magnetic field changes the dispersion characteristics of the ion cyclotron waves. The growth rate of the instability increases with the mode frequency and has the largest value at the mode frequencies 43 kHz (for omega much greater than k(z)v(te)) and 7.53 kHz (for k(z)v(ti)much less than omega much less than k(z)v(te)) when the electron drift velocity is less than the critical value for the CDEIC instability. The growth rate also increases with the guide magnetic field and has the largest value at the magnetic fields 1.0 kG (k(y)rho(i)similar to 0.35) for omega much greater than k(z)v(te) and 0.1 kG (k(y)rho(i)similar to 0.2) for k(z)v(ti)much less than omega much less than k(z)v(te). The growth rate is a sensitive function of electron collision frequency. The results of the theory are applied to explain some of the experimental observations of Koepke [IEEE Trans. Plasma Sci. 20, 631 (1992)]. (C) 2000 American Institute of Physics. [S1070-664X(00)01602-5].

リンク情報
DOI
https://doi.org/10.1063/1.873830
CiNii Articles
http://ci.nii.ac.jp/naid/80011617911
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000084822700007&DestApp=WOS_CPL
ID情報
  • DOI : 10.1063/1.873830
  • ISSN : 1070-664X
  • CiNii Articles ID : 80011617911
  • Web of Science ID : WOS:000084822700007

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