Improvement of interferometric measurements on FIR Polarimeter/Interferometer systems
On many tokamaks the reconstruction of the magnetic field structure in the plasma is supported by polarimetric measurements. Recent proposed and realized methods are based on a far infrared laser beam with a rotating polarization ellipse. The same instrument usually performs as an interferometer measuring the line integrated plasma density. It has been shown that the rotating polarization ellipse disturbs the interferometric measurements. A method based on the principle of a rotating polarization in which the interferometric measurement is unaffected is proposed. Bench test results are presented which show the feasibility of this method.
Bibliographic Reference: Article: Rev. Sci. Instrum. (1996)
Record Number: 199610390 / Last updated on: 1996-04-15
Original language: en
Available languages: en