SOlar Neutron and Gamma-ray Spectroscopy mission (SONGS)

Kazutaka Yamaoka; Hiroyasu Tajima; Kikuko Miyata; Masaki Usami; Toyoki Watabe; Koji Matsushita; Kazuya Ito; Kazuhiro Nakazawa; Satoshi Masuda; Koichi Tani; Masaki Arai; Satoshi Hatori; Kyo Kume; Satoshi Mizushima; Hiromitsu Takahashi; Kyoko Watanabe

doi:10.1117/12.2629131

31 August 2022 SOlar Neutron and Gamma-ray Spectroscopy mission (SONGS)

Kazutaka Yamaoka, Hiroyasu Tajima, Kikuko Miyata, Masaki Usami, Toyoki Watabe, Koji Matsushita, Kazuya Ito, Kazuhiro Nakazawa, Satoshi Masuda, Koichi Tani, Masaki Arai, Satoshi Hatori, Kyo Kume, Satoshi Mizushima, Hiromitsu Takahashi, Kyoko Watanabe

Author Affiliations +

Proceedings Volume 12181, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray; 1218125 (2022) https://doi.org/10.1117/12.2629131
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The solar neutron and gamma-ray spectroscopy (SONGS) mission is a 3U CubeSat dedicated for detecting neutrons and gamma-rays associated with intense solar flares. Solar neutron observations have not been in progress because ground-based observations are affected by attenuation in the Earth's atmosphere, and there is no dedicated mission in space at present. Hence, we are now developing in collaboration between science and engineering people at universities, and preparing for launch around 2024 during the next solar maximum. The SONGS carries a novel radiation detector which consists of multi-layered plastic scintillator bars and GAGG(Ce) scintillator array so that it can determine energies for both neutrons and gamma-rays. In total 704 signals from silicon photo-multipliers (SiPMs) are processed by 45 ASICs with very low power consumption, and realized within limited resources. In this presentation, we will describe scientific motivation, mission and instrument overview, and results from the bread-board model (BBM).

Conference Presentation

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Kazutaka Yamaoka, Hiroyasu Tajima, Kikuko Miyata, Masaki Usami, Toyoki Watabe, Koji Matsushita, Kazuya Ito, Kazuhiro Nakazawa, Satoshi Masuda, Koichi Tani, Masaki Arai, Satoshi Hatori, Kyo Kume, Satoshi Mizushima, Hiromitsu Takahashi, and Kyoko Watanabe "SOlar Neutron and Gamma-ray Spectroscopy mission (SONGS)", Proc. SPIE 12181, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, 1218125 (31 August 2022); https://doi.org/10.1117/12.2629131

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