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A Complete Stokes Vector Polarimeter

Published online by Cambridge University Press:  14 August 2015

Frank Q. Orrall
Frank Q. Orrall*
Affiliation:
Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822, U.S.A.

Abstract

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A scanning photoelectric polarimeter of 16 cm aperture that can measure all four Stokes parameters of the visible radiation of the Sun's disk, the Corona, Moon and planets, has been constructed at the Institute for Astronomy and is installed on Mt. Haleakala. It is a two (orthogonal) channel system and uses a rotating λ/4 plate modulator. Photon counting is done by a digital computer that also Fourier analyzes the modulated output of the photomultipliers, and, from the Fourier components, computes the Stokes parameters in real time.

Information

Type
Part I: Instrumentation – Measurement Fields in the Solar Atmosphere
Information
Symposium - International Astronomical Union , Volume 43: Solar Magnetic Fields , 1971 , pp. 30 - 36
Copyright
Copyright © Reidel 1971 

References

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