Solar EUV/FUV line polarimetry. I - Observational parameters and theoretical considerations. II - Instruments and methods

Details Solar EUV/FUV line polarimetry. I - Observational parameters and theoretical considerations. II - Instruments and methods Solar EUV/FUV line polarimetry. I - Observational parameters and theoretical considerations. II - Instruments and methods

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1343..376f&link_type=abstract

IN: X-ray/EUV optics for astronomy, microscopy, polarimetry, and projection lithography; Proceedings of the Meeting, San Diego,

Physics

Optics

Astronomical Polarimetry, Extreme Ultraviolet Radiation, Far Ultraviolet Radiation, Linear Polarization, Polarimeters, Solar Radiation, H Lines, Lyman Alpha Radiation, Solar Corona, Solar Flares, Solar Instruments

Scientific paper

The paper discusses theoretical considerations and presents the observational parameters for the development of reflective FUV coronagraph/polarimeter and EUV imaging polarimeter instruments. New EUV/FUV polarimeter instrument concepts for solar research are described. One of these is a new coronagraph/polarimeter operating at 1215.6 A, which could observe the neutral hydrogen Ly-alpha line in the near solar corona and lead to the first direct measurements of both the strength and the direction of coronal magnetic fields. The other is a new multilayer EUV imaging polarimeter, operating at the wavelengths of strong He emission lines, which could observe impact polarization phenomena and provide information concerning the relative importance of thermal and nonthermal processes in solar flares.

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