Optical design of the Chromospheric LAyer Spectro-Polarimeter (CLASP2)

Toshihiro Tsuzuki; Ryohko Ishikawa; Ryouhei Kano; Noriyuki Narukage; Donguk Song; Masaki Yoshida; Fumihiro Uraguchi; Takenori J. Okamoto; David McKenzie; Ken Kobayashi; Laurel Rachmeler; Frederic Auchere; Javier Trujillo Bueno

doi:10.1117/12.2562273

13 December 2020 Optical design of the Chromospheric LAyer Spectro-Polarimeter (CLASP2)

Toshihiro Tsuzuki, Ryohko Ishikawa, Ryouhei Kano, Noriyuki Narukage, Donguk Song, Masaki Yoshida, Fumihiro Uraguchi, Takenori J. Okamoto, David McKenzie, Ken Kobayashi, Laurel Rachmeler, Frederic Auchere, Javier Trujillo Bueno

Author Affiliations +

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114446W (2020) https://doi.org/10.1117/12.2562273
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

Chromospheric LAyer Spectro-Polarimeter (CLASP2) was a sounding rocket experiment, which is a follow-up mission to the Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP1) in 2015. To measure the magnetic fields in the upper solar atmosphere in a highly quantitative manner, CLASP2 changes the target wavelengths from the hydrogen Ly-α line (121.567 nm) to Mg II lines near 280 nm. We reused the main structure and most of the optical components in the CLASP1 instrument, which reduced the turnaround time and cost. We added a magnifying optical system to maintain the wavelength resolution, even at the longer wavelength of CLASP2. Here, we describe the optical design and performance of the CLASP2 instrument.

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Toshihiro Tsuzuki, Ryohko Ishikawa, Ryouhei Kano, Noriyuki Narukage, Donguk Song, Masaki Yoshida, Fumihiro Uraguchi, Takenori J. Okamoto, David McKenzie, Ken Kobayashi, Laurel Rachmeler, Frederic Auchere, and Javier Trujillo Bueno "Optical design of the Chromospheric LAyer Spectro-Polarimeter (CLASP2)", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114446W (13 December 2020); https://doi.org/10.1117/12.2562273

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