Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Prototype fine-imaging narrow field of view semiconductor Compton telescope with shielded coded-mask, mini-SGI

Keigo Okuma, Kazuhiro Nakazawa, Shin׳ichiro Takeda, Yuta Nishimura, Mii Ando, Yuki Omiya, Manari Oguchi, Atsuya TANAKA, Shin Watanabe, Tadayuki Takahashi, Masahiko Kobayashi, Naoki Ishida, Takahiro Minami, M. Onishi, Toshihiko Arai

2024

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Summary

Semiconductor Compton telescope (SCT) is one of the promising technologies in cosmic MeV gamma-ray observation, because of good angular resolution measure thanks to its high energy and positional resolutions. However, it cannot be better than a few degrees because of quantum limitation, known as doppler broadening. With improving sensitivity in MeV astronomy, realization of 10-arcmin-level of angular resolution is becoming more important. Combining a coded-aperture mask imaging to SCT is the simplest measure to obtain this level of angular resolution in MeV astronomy. Since the mask made of heavy metal is a BGD source and contribution from bright sources and CXB limits the statistical significance of the mask decoding, we propose the concept of attaching a coded mask to a narrow-field Si/C

Source type
Peer-reviewed study
DOI
10.1117/12.3019754
Catalogue ID
SNmoic266s-ayd3un
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