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On nonlinear changes of the reflection coefficient of the fast wave at LH frequencies due to ponderomotive forces

Abstract

The nonlinear changes of the reflection coefficient R of fast waves launched by waveguide arrays may be significant even for power densities S in the range of 3 or 4 kW/cm{sup 2}. For the input parameters chosen in the computations, the effects of ponderomotive forces lead to an increase in plasma density in front of the grill , whereas for the slow wave the plasma density always decreases with growing S. For small plasma density in front of the grill, ponderomotive forces thus lead to the decrease of R, whereas for high plasma densities R grows with growing power density S. The heating of the edge plasma by the wave tends to weaken these changes. (Z.S.) 6 figs., 17 refs.
Authors:
Petrzilka, V [1] 
  1. Ceskoslovenska Akademie Ved, Prague (Czechoslovakia). Ustav Fyziky Plazmatu
Publication Date:
Sep 01, 1991
Product Type:
Technical Report
Report Number:
IPPCZ-313
Reference Number:
SCA: 700350; PA: AIX-23:051710; SN: 92000773181
Resource Relation:
Other Information: PBD: Sep 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LOWER HYBRID HEATING; PONDEROMOTIVE FORCE; PLASMA WAVES; REFLECTION; NONLINEAR PROBLEMS; PLASMA DENSITY; WAVEGUIDES; 700350; PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS
OSTI ID:
10157576
Research Organizations:
Ceskoslovenska Akademie Ved, Prague (Czech Republic). Ustav Fyziky Plazmatu
Country of Origin:
Serbia and Montenegro
Language:
English
Other Identifying Numbers:
Other: ON: DE92635585; TRN: CS9223608051710
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
7 p.
Announcement Date:
Jul 06, 2005

Citation Formats

Petrzilka, V. On nonlinear changes of the reflection coefficient of the fast wave at LH frequencies due to ponderomotive forces. Serbia and Montenegro: N. p., 1991. Web.
Petrzilka, V. On nonlinear changes of the reflection coefficient of the fast wave at LH frequencies due to ponderomotive forces. Serbia and Montenegro.
Petrzilka, V. 1991. "On nonlinear changes of the reflection coefficient of the fast wave at LH frequencies due to ponderomotive forces." Serbia and Montenegro.
@misc{etde_10157576,
title = {On nonlinear changes of the reflection coefficient of the fast wave at LH frequencies due to ponderomotive forces}
author = {Petrzilka, V}
abstractNote = {The nonlinear changes of the reflection coefficient R of fast waves launched by waveguide arrays may be significant even for power densities S in the range of 3 or 4 kW/cm{sup 2}. For the input parameters chosen in the computations, the effects of ponderomotive forces lead to an increase in plasma density in front of the grill , whereas for the slow wave the plasma density always decreases with growing S. For small plasma density in front of the grill, ponderomotive forces thus lead to the decrease of R, whereas for high plasma densities R grows with growing power density S. The heating of the edge plasma by the wave tends to weaken these changes. (Z.S.) 6 figs., 17 refs.}
place = {Serbia and Montenegro}
year = {1991}
month = {Sep}
}