Collisionless damping of perpendicular magnetosonic waves in a two-ion-species plasma
- Nagoya Univ. (Japan). Dept. of Physics
- Texas Univ., Austin, TX (United States). Inst. for Fusion Studies
Propagation of finite-amplitude magnetosonic waves in a collisionless plasma containing two ion species is studied with a one-dimensional, fully electromagnetic code based on a three-fluid model. It is found that perpendicular magnetosonic waves are damped in a two-ion-species plasma; a magnetosonic pulse accelerates heavy ions in the direction parallel to the wave front, which results in the excitation of a longer wavelength perturbation behind the pulse. The damping due to the energy transfer from the original pulse to the longer wavelength perturbation occurs even if the plasma is collisionless and the pulse amplitude is small. The theoretically obtained damping rate is in agreement with the simulation result.
- Research Organization:
- Univ. of Texas, Austin, TX (United States). Institute for Fusion Studies
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- FG03-96ER54346
- OSTI ID:
- 373895
- Report Number(s):
- DOE/ER/54346-757; IFSR-757; ON: DE96014772; TRN: 96:024924
- Resource Relation:
- Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microphysically modified magnetosonic modes in collisionless, high-β plasmas
Parameteric studies of nonlinear oblique magnetosonic waves in two-ion-species plasmas