SMILE-3: Sky survey in MeV gamma-ray using an electron-tracking Compton telescope loaded on balloons

A. Takada, T. Tanimori, Y. Mizumura, T. Takemura, K. Yoshikawa, Y. Nakamura, M. Abe, H. Kubo, S. Kurosawa, K. Miuchi, T. Sawano, H. Hamaguchi

研究成果: Conference contribution

抄録

MeV gamma-ray astronomy in an energy range of hundreds of keV to tens of MeV is a unique window for observing nucleosynthesis, however this field has not opened up until recently because of imaging difficulties. Thus, we are developing an electron-tracking Compton camera (ETCC), which consists of a gaseous electron tracker and pixel scintillator arrays, as a next generation MeV gamma-ray telescope. Because the ETCC detects all parameters after Compton scattering, we can determine the momentum of incident gamma-rays with powerful background rejection. This ETCC has confirmed low-noise and high-sensitivity observations at high altitude through Sub-MeV gamma-ray Imaging Loaded-on-balloon Experiment I (SMILE-I) in 2006 and SMILE-2+ in 2018. Therefore, we are planning scientific observations using an ETCC with an effective area of ∼10 cm2 for 0.3 MeV, a spatial resolution of ≤10 degrees for 0.5 MeV, and a field of view of 3 sr as the next step (SMILE-3). In this paper, we present the design of the SMILE-3 ETCC and its expected observations.

本文言語English
ホスト出版物のタイトルSpace Telescopes and Instrumentation 2020
ホスト出版物のサブタイトルUltraviolet to Gamma Ray
編集者Jan-Willem A. den Herder, Shouleh Nikzad, Kazuhiro Nakazawa
出版社SPIE
ISBN(電子版)9781510636750
DOI
出版ステータスPublished - 2020
イベントSpace Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray - Virtual, Online, United States
継続期間: 2020 12 142020 12 18

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
11444
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

Conference

ConferenceSpace Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray
国/地域United States
CityVirtual, Online
Period20/12/1420/12/18

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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