The tandem Fabry-Perot filter imaging spectro-polarimeter for the Solar Magnetic Activity Research Telescope (SMART)

Shin'ichi Nagata; Kenichi Otsuji; Takako T. Ishii; Kiyoshi Ichimoto; Satoru Ueno; Reizaburo Kitai; Goichi Kimura; Kazunari Shibata; Yoshikazu Nakatani; Satoshi Morita

doi:10.1117/12.827852

23 September 2009 The tandem Fabry-Perot filter imaging spectro-polarimeter for the Solar Magnetic Activity Research Telescope (SMART)

Shin'ichi Nagata, Kenichi Otsuji, Takako T. Ishii, Kiyoshi Ichimoto, Satoru Ueno, Reizaburo Kitai, Goichi Kimura, Kazunari Shibata, Yoshikazu Nakatani, Satoshi Morita

Author Affiliations +

Proceedings Volume 7438, Solar Physics and Space Weather Instrumentation III; 74380V (2009) https://doi.org/10.1117/12.827852
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

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.

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Shin'ichi Nagata, Kenichi Otsuji, Takako T. Ishii, Kiyoshi Ichimoto, Satoru Ueno, Reizaburo Kitai, Goichi Kimura, Kazunari Shibata, Yoshikazu Nakatani, and Satoshi Morita "The tandem Fabry-Perot filter imaging spectro-polarimeter for the Solar Magnetic Activity Research Telescope (SMART)", Proc. SPIE 7438, Solar Physics and Space Weather Instrumentation III, 74380V (23 September 2009); https://doi.org/10.1117/12.827852

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