26 September 2013 Design progress of the solar UV-Vis-IR telescope (SUVIT) aboard SOLAR-C
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We present a design progress of the Solar UV-Vis-IR Telescope (SUVIT) aboard the next Japanese solar mission SOLAR-C. SUVIT has an aperture diameter of ~1.4 m for achieving spectro-polarimetric observations with spatial and temporal resolution exceeding the Hinode Solar Optical Telescope (SOT). We have studied structural and thermal designs of the optical telescope as well as the optical interface between the telescope and the focal plane instruments. The focal plane instruments are installed into two packages, filtergraph and spectrograph packages. The spectropolarimeter is the instrument dedicated to accurate polarimetry in the three spectrum windows at 525 nm, 854 nm, and 1083 nm for observing magnetic fields at both the photospheric and chromospheric layers. We made optical design of the spectrograph accommodating the conventional slit spectrograph and the integral field unit (IFU) for two-dimensional coverage. We are running feasibility study of the IFU using fiber arrays consisting of rectangular cores.
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Y. Katsukawa, Y. Katsukawa, K. Ichimoto, K. Ichimoto, Y. Suematsu, Y. Suematsu, H. Hara, H. Hara, R. Kano, R. Kano, T. Shimizu, T. Shimizu, K. Matsuzaki, K. Matsuzaki, "Design progress of the solar UV-Vis-IR telescope (SUVIT) aboard SOLAR-C", Proc. SPIE 8862, Solar Physics and Space Weather Instrumentation V, 88620S (26 September 2013); doi: 10.1117/12.2029525; https://doi.org/10.1117/12.2029525


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