Bench Test Results on a new Technique for Far InfraRed Polarimetry

S. Barry; C. Nieswand; S. L. Prunty; H. M. Mansfield; P. O'Leary

doi:10.1063/1.1148094

Bench Test Results on a new Technique for Far InfraRed Polarimetry

S. Barry, C. Nieswand, S. L. Prunty, H. M. Mansfield, P. O'Leary

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The results of bench tests performed on a new method of combined interferometry/polarimetry for the magnetic-field reconstruction of tokamak plasmas is presented. In particular, the sensitivity obtained in the polarimetric measurement shows the feasibility of Faraday rotation determination approaching a precision of ±0.2°. The method is based on an optically pumped far-infrared laser with a rotating polarization where both the interferometric and polarimetric information is determined from phase measurements. Specific sources that introduce disturbances in the optical arrangement and that can limit the attainment of the polarimetric precision, mentioned above, are discussed.

Original language	English
Pages (from-to)	2037-2039
Number of pages	3
Journal	Review of Scientific Instruments
Volume	68
Issue number	5
DOIs	https://doi.org/10.1063/1.1148094 https://doi.org/10.1063/1.1148094
Publication status	Published - May 1997
Externally published	Yes

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abstract = "The results of bench tests performed on a new method of combined interferometry/polarimetry for the magnetic-field reconstruction of tokamak plasmas is presented. In particular, the sensitivity obtained in the polarimetric measurement shows the feasibility of Faraday rotation determination approaching a precision of ±0.2°. The method is based on an optically pumped far-infrared laser with a rotating polarization where both the interferometric and polarimetric information is determined from phase measurements. Specific sources that introduce disturbances in the optical arrangement and that can limit the attainment of the polarimetric precision, mentioned above, are discussed.",

author = "S. Barry and C. Nieswand and Prunty, {S. L.} and Mansfield, {H. M.} and P. O'Leary",

year = "1997",

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AU - Nieswand, C.

AU - Prunty, S. L.

AU - Mansfield, H. M.

AU - O'Leary, P.

PY - 1997/5

Y1 - 1997/5

N2 - The results of bench tests performed on a new method of combined interferometry/polarimetry for the magnetic-field reconstruction of tokamak plasmas is presented. In particular, the sensitivity obtained in the polarimetric measurement shows the feasibility of Faraday rotation determination approaching a precision of ±0.2°. The method is based on an optically pumped far-infrared laser with a rotating polarization where both the interferometric and polarimetric information is determined from phase measurements. Specific sources that introduce disturbances in the optical arrangement and that can limit the attainment of the polarimetric precision, mentioned above, are discussed.

AB - The results of bench tests performed on a new method of combined interferometry/polarimetry for the magnetic-field reconstruction of tokamak plasmas is presented. In particular, the sensitivity obtained in the polarimetric measurement shows the feasibility of Faraday rotation determination approaching a precision of ±0.2°. The method is based on an optically pumped far-infrared laser with a rotating polarization where both the interferometric and polarimetric information is determined from phase measurements. Specific sources that introduce disturbances in the optical arrangement and that can limit the attainment of the polarimetric precision, mentioned above, are discussed.

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SN - 0034-6748

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ER -

Bench Test Results on a new Technique for Far InfraRed Polarimetry

Abstract

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