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Direct‐ and cross‐polarized scatter from a turbulent laboratory plasma
Author(s) -
Tremain Dennis E.,
Graf Kurt A.,
Guthart Harold
Publication year - 1983
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs018i002p00281
Subject(s) - physics , backscatter (email) , scattering , plasma , computational physics , depolarization , signal (programming language) , polarization (electrochemistry) , depolarization ratio , turbulence , optics , reflection (computer programming) , electron , electron density , elliptical polarization , atomic physics , linear polarization , nuclear physics , laser , telecommunications , meteorology , chemistry , medicine , computer science , wireless , programming language , endocrinology
This paper presents backscatter data from a turbulent‐plasma scattering experiment that is principally concerned with depolarization of the incident signal. Results of calculations using models for the direct‐ and cross‐polarized cross sections are presented. A model based on reflection from an ‘overdense core’ accounts well for the observed results when the plasma is refractively overdense. Measurements show that a circularly polarized incident signal depolarizes more than a linearly polarized incident signal. The depolarization depends on the angle of incidence and electron density.