Doppler splitting of electron cyclotron absorption resonance in plasmas

Journal Article · Thu Oct 15 00:00:00 EDT 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.36.3909· OSTI ID:6112604

Arunasalam, V; Efthimion, P C; Hosea, J C; Hsuan, H; Taylor, G

The Gaussian broadening of absorption lines due to the Doppler effect is well known. However, it is shown here for the first time that Doppler splitting occurs for the ordinary-mode electron-cyclotron-resonance absorption in plasmas. Although this absorption is due to the finite size of the electron Larmor orbits it is mainly determined by T/sub X/ and is only weakly dependent on T/sub perpendicular/ via cyclotron-overstability-type terms. This is in contrast to intuitive expectations which would suggest that finite-Larmor-radius effects should depend strongly on T/sub perpendicular/.

• Research Organization: Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08544-0451
• OSTI ID: 6112604
• Journal Information: Phys. Rev. A; (United States), Vol. 36:8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
ABSORPTION SPECTRA
DOPPLER EFFECT
FINE STRUCTURE
GAUSS FUNCTION
LINE BROADENING
MAXWELL EQUATIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
FUNCTIONS
PARTIAL DIFFERENTIAL EQUATIONS
SPECTRA
700103* - Fusion Energy- Plasma Research- Kinetics