Celestial MeV gamma-ray observation using electron-tracking Compton camera loaded on long duration balloons (SMILE-3)

A. Takada; T. Ikeda; M. Abe; H. Tsukamoto; R. Yoshioka; T. Tanimori; T. Takemura; K. Yoshikawa; Y. Mizumura; S. Kurosawa; K. Miuchi; T. Sawano; T. Nakamori; H. Iiyama; T. Oka; M. Mori; K. Hamaguchi; J. Kushida

doi:10.1117/12.3016872

21 August 2024 Celestial MeV gamma-ray observation using electron-tracking Compton camera loaded on long duration balloons (SMILE-3)

A. Takada, T. Ikeda, M. Abe, H. Tsukamoto, R. Yoshioka, T. Tanimori, T. Takemura, K. Yoshikawa, Y. Mizumura, S. Kurosawa, K. Miuchi, T. Sawano, T. Nakamori, H. Iiyama, T. Oka, M. Mori, K. Hamaguchi, J. Kushida

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130932P (2024) https://doi.org/10.1117/12.3016872
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

MeV gamma-ray observations provide unique information about nucleosynthesis, diffusion in our galaxy, low-energy cosmic rays, particle acceleration, and other phenomena. However, the detection sensitivity in this band is significantly lower than that in other bands due to a large background contamination. To address this issue, we are developing an electron-tracking Compton camera (ETCC) with powerful background rejection tools based on Compton recoil electron tracks. This will enable future observations to be conducted with greater sensitivity. We have successfully demonstrated the detection technology and performance of the ETCC with two balloon experiments. We are preparing for the next balloon flight, SMILE-3, to observe galactic diffusion gamma rays and some bright celestial objects.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

A. Takada, T. Ikeda, M. Abe, H. Tsukamoto, R. Yoshioka, T. Tanimori, T. Takemura, K. Yoshikawa, Y. Mizumura, S. Kurosawa, K. Miuchi, T. Sawano, T. Nakamori, H. Iiyama, T. Oka, M. Mori, K. Hamaguchi, and J. Kushida "Celestial MeV gamma-ray observation using electron-tracking Compton camera loaded on long duration balloons (SMILE-3)", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130932P (21 August 2024); https://doi.org/10.1117/12.3016872

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