Accuracy of Cotton-Mouton polarimetry in sheared toroidal plasma of circular cross-section

• Autorzy: Yury Kravtsov , Janusz Chrzanowski
• Języki publikacji: EN

Abstrakty

EN

The Cotton-Mouton effect in sheared plasma with helical magnetic lines is studied on the basis of the equation for complex amplitude ratio (CAR). A simple model for helical magnetic lines in sheared plasma of toroidal configuration is suggested. The equation for CAR in the sheared plasma is solved by perturbation method, using the small shear angle deviations as is characteristic for tokamak plasma. It is shown that the inaccuracy in polarization measurements caused by deviations of the sheared angle amounts to some percentage of the shearless Cotton-Mouton phase shift. One suggested method is to subtract the “sheared” term, which may improve the accuracy of the Cotton-Mouton measurements in the sheared plasma.

Słowa kluczowe

EN

microwave plasma polarimetry; polarization ellipse; complex polarization angle; quasi-isotropic approximation; complex amplitude ratio

• Czasopismo: Open Physics
• Rocznik: 2011
• Tom: 9
• Numer: 1
• Strony: 123-130

Daty

wydano

2011-02-01

online

2010-09-24

Twórcy

autor

Yury Kravtsov

autor

Janusz Chrzanowski

• Institute of Physics, Maritime University of Szczecin, 1-2 Waly Chrobrego St., Szczecin, 70500, Poland,

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Identyfikatory

DOI

10.2478/s11534-010-0049-1