The Solar Optical Telescope onboard the Solar-B

Kiyoshi Ichimoto; Saku Tsuneta V.D.M.; Yoshinori Suematsu; Toshifumi Shimizu; Masashi Otsubo; Yoshihiro Kato; Motokazu Noguchi; Masao Nakagiri; Tomonori Tamura; Yukio Katsukawa; Masahito Kubo; Yasushi Sakamoto; Hirohisa Hara; Kenji Minesugi; Akira Ohnishi; Hideo Saito; Noboru Kawaguchi; Tadashi Matsushita; Toshitaka Nakaoji; Kazuhiro Nagae; Joji Sakamoto; Yoshihiro Hasuyama; Izumi Mikami; Keizo Miyawaki; Yasushi Sakurai; Nobuaki Kaido; Toshihida Horiuchi; Sadanori Shimada; Toshio Inoue; Masaaki Mitsutake; Norimasa Yoshida; Osamu Takahara; Norihide Takeyama; Masaharu Suzuki; Shunichi Abe

doi:10.1117/12.550989

12 October 2004 The Solar Optical Telescope onboard the Solar-B

Kiyoshi Ichimoto, Saku Tsuneta V.D.M., Yoshinori Suematsu, Toshifumi Shimizu, Masashi Otsubo, Yoshihiro Kato, Motokazu Noguchi, Masao Nakagiri, Tomonori Tamura, Yukio Katsukawa, Masahito Kubo, Yasushi Sakamoto, Hirohisa Hara, Kenji Minesugi, Akira Ohnishi, Hideo Saito, Noboru Kawaguchi, Tadashi Matsushita, Toshitaka Nakaoji, Kazuhiro Nagae, Joji Sakamoto, Yoshihiro Hasuyama, Izumi Mikami, Keizo Miyawaki, Yasushi Sakurai, Nobuaki Kaido, Toshihida Horiuchi, Sadanori Shimada, Toshio Inoue, Masaaki Mitsutake, Norimasa Yoshida, Osamu Takahara, Norihide Takeyama, Masaharu Suzuki, Shunichi Abe

Author Affiliations +

Proceedings Volume 5487, Optical, Infrared, and Millimeter Space Telescopes; (2004) https://doi.org/10.1117/12.550989
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The solar optical telescope onboard the Solar-B is aimed to perform a high precision polarization measurements of the solar spectral lines in visible wavelengths to obtain, for the first time, continuous sets of high spatial resolution (~0.2arcsec) and high accuracy vector-magnetic-field map of the sun for studying the mechanisms driving the fascinating activity phenomena occurring in the solar atmosphere. The optical telescope assembly (OTA) is a diffraction limited, aplanatic Gregorian telescope with an aperture of Φ500mm. With a collimating lens unit and an active folding mirror, the OTA provides a pointing-stabilized parallel beam to the focal plane package (FPP) with a field of view of about 360x200arcsec. In this paper we identify the key technical issues of OTA for achieving the mission goal and describe the basic concepts in its optical, mechanical and thermal designs. The strategy to verify the in-orbit performance of the telescope is also discussed.

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Kiyoshi Ichimoto, Saku Tsuneta V.D.M., Yoshinori Suematsu, Toshifumi Shimizu, Masashi Otsubo, Yoshihiro Kato, Motokazu Noguchi, Masao Nakagiri, Tomonori Tamura, Yukio Katsukawa, Masahito Kubo, Yasushi Sakamoto, Hirohisa Hara, Kenji Minesugi, Akira Ohnishi, Hideo Saito, Noboru Kawaguchi, Tadashi Matsushita, Toshitaka Nakaoji, Kazuhiro Nagae, Joji Sakamoto, Yoshihiro Hasuyama, Izumi Mikami, Keizo Miyawaki, Yasushi Sakurai, Nobuaki Kaido, Toshihida Horiuchi, Sadanori Shimada, Toshio Inoue, Masaaki Mitsutake, Norimasa Yoshida, Osamu Takahara, Norihide Takeyama, Masaharu Suzuki, and Shunichi Abe "The Solar Optical Telescope onboard the Solar-B", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); https://doi.org/10.1117/12.550989

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