Physics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spie.7438e..22n&link_type=abstract
Solar Physics and Space Weather Instrumentation III. Edited by Fineschi, Silvano; Fennelly, Judy A. Proceedings of the SPIE, Vol
Physics
Scientific paper
In order to perform precise and high time cadence magnetic field measurement across the solar surface, the Tandem Fabry-Perot filter imaging spectro-polarimeter for the Solar Magnetic Activity Research Telescope (SMART) is revised. By using the CCD with moderate frame rate of 30fps, full Stokes vectors on the field-of-view 320"x240" can be obtained at 4 wavelengths around FeI6302 line within about 15s. The optical performance of the Tandem Fabry-Perof filters is investigated by using the spectrograph at the Domeless Solar Telescope at Hida Observatory. The test results show the full-width-half-maximum (FWHM) of the tandem filters is about 0.017nm over the 60mm clear aperture is achieved. The system is developed to start the regular observations from 2010.
Ichimoto Kiyoshi
Ishii Takako T.
Kimura Goichi
Kitai Reizaburo
Morita Satoshi
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