Author: Donald Lee Correll
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 534
Book Description
Abstract: leaves xix-xxi.
Linear and Nonlinear Aspects of the Current-driven Ion Cyclotron Instability
Author: Donald Lee Correll
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 534
Book Description
Abstract: leaves xix-xxi.
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 534
Book Description
Abstract: leaves xix-xxi.
ERDA Energy Research Abstracts
Theory of the Current-Driven Ion Cyclotron Instability in the Bottomside Ionosphere
Author: P. Satyanarayana
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
Book Description
A theory of the current-driven electrostatic ion cyclotron(EIC) instability in the collisional bottomside ionosphere is presented. It is found that the electron collisions are destabilizing and are crucial for the excitation of the EIC instability in the collisional bottomside ionosphere. Furthermore, the growth rates of the ion cyclotron instability in the bottomside ionosphere maximize for (K-perpendicular) (rho sub i)> or = 1 where 2 pi/K-perpendicular is the mode scale size perpendicular to the magnetic field and rho sub i the ion gyroradius. Realistic plasma density and temperature profiles typical of the high latitude ionosphere are used to compute the altitude dependence of the linear growth rate of the maximally growing modes and critical drift velocity of the EIC instability. The maximally growing modes corresponds to observed meter size irregularities and the threshold drift velocity required for the excitation of EIC instability is lower for heavier (NO+0+) ions than that for the lighter (H+) ions. Dupree's resonance broadening theory is used to estimate nonlinear saturated amplitudes for the ion cyclotron instability in the high latitude ionosphere. Comparison with experimental observations is also made. It is conjectured that the EIC instability in the bottomside ionosphere could be a source of transversely accelerated heavier ions and energetic heavy ion conic distributions at higher altitudes. Keywords: Currents; Ion-cyclotron instability; High altitude ionosphere; Collision; Nonlinear theory.
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
Book Description
A theory of the current-driven electrostatic ion cyclotron(EIC) instability in the collisional bottomside ionosphere is presented. It is found that the electron collisions are destabilizing and are crucial for the excitation of the EIC instability in the collisional bottomside ionosphere. Furthermore, the growth rates of the ion cyclotron instability in the bottomside ionosphere maximize for (K-perpendicular) (rho sub i)> or = 1 where 2 pi/K-perpendicular is the mode scale size perpendicular to the magnetic field and rho sub i the ion gyroradius. Realistic plasma density and temperature profiles typical of the high latitude ionosphere are used to compute the altitude dependence of the linear growth rate of the maximally growing modes and critical drift velocity of the EIC instability. The maximally growing modes corresponds to observed meter size irregularities and the threshold drift velocity required for the excitation of EIC instability is lower for heavier (NO+0+) ions than that for the lighter (H+) ions. Dupree's resonance broadening theory is used to estimate nonlinear saturated amplitudes for the ion cyclotron instability in the high latitude ionosphere. Comparison with experimental observations is also made. It is conjectured that the EIC instability in the bottomside ionosphere could be a source of transversely accelerated heavier ions and energetic heavy ion conic distributions at higher altitudes. Keywords: Currents; Ion-cyclotron instability; High altitude ionosphere; Collision; Nonlinear theory.
ERDA Energy Research Abstracts
Author: United States. Energy Research and Development Administration. Technical Information Center
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1680
Book Description
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1680
Book Description
Proceedings of the Workshop on the Current-Driven Electrostatic Ion-Cyclotron Instability, July 9/10, 1987, Innsbruck, Austria
Author: R. Schrittwieser
Publisher: World Scientific Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 188
Book Description
Publisher: World Scientific Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 188
Book Description
Energy Research Abstracts
Nuclear Science Abstracts
ERDA Energy Research Abstracts
Author: United States. Energy Research and Development Administration
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1080
Book Description
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1080
Book Description