Calibration procedure for the polarimetric instrument for Solar Eclipse-98

David F. Elmore; Gregory L. Card; Alice R. Lecinski; Bruce W. Lites; Kim V. Streander; Steven Tomczyk

doi:10.1117/12.410535

18 December 2000 Calibration procedure for the polarimetric instrument for Solar Eclipse-98

David F. Elmore, Gregory L. Card, Alice R. Lecinski, Bruce W. Lites, Kim V. Streander, Steven Tomczyk

Proceedings Volume 4139, Instrumentation for UV/EUV Astronomy and Solar Missions; (2000) https://doi.org/10.1117/12.410535
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We describe a ground-based eclipse instrument for measuring solar coronal polarization brightness and intensity, and the calibration procedures for this instrument. We present coronal measurements from the February 26, 1998 total solar eclipse observed at Curacao, N.A.. The instrument employs a liquid crystal variable retarder for analysis of coronal broad band linear polarization and collects data on an array detector spanning a 6.5 solar radius field of view. Polarization calibration of the liquid crystal variable retarder utilizes the tangential orientation of coronal polarization to calculate retardance values.

Citation Download Citation

David F. Elmore, Gregory L. Card, Alice R. Lecinski, Bruce W. Lites, Kim V. Streander, and Steven Tomczyk "Calibration procedure for the polarimetric instrument for Solar Eclipse-98", Proc. SPIE 4139, Instrumentation for UV/EUV Astronomy and Solar Missions, (18 December 2000); https://doi.org/10.1117/12.410535

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