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Your search keyword '"Katsuta, Jun'ichiro"' showing total 2 results
Start Over Author "Katsuta, Jun'ichiro" Topic event selection
2 results on '"Katsuta, Jun'ichiro"'

1. Event-selection technique for the multi-layer Si−CdTe Compton camera onboard Hitomi

Author

Teramae, Takuto, Tanaka, Koji, the, Hitomi HXI/SGD team, Ohno, Masanori, Fukazawa, Yasushi, Mizuno, Tsunefumi, Takahashi, Hiromitsu, Tanaka, Yasuyuki, Katsuta, Jun'ichiro, Kawano, Takafumi, Habata, Sho, Okada, Chiho, Ohashi, Norie, Takahashi, Tadayuki, Kokubun, Motohide, Watanabe, Shin, Sato, Goro, Sato, Rie, Ohta, Masayuki, Uchida, Yusuke, Tamaru, Ryota, Yoneda, Hiroki, Nakazawa, Kazuhiro, Murakami, Hiroaki, Tajima, Hiroyasu, Yamaoka, Kazutaka, Kinoshita, Masaomi, Hayashi, Katsuhiro, Kitaguchi, Takao, and Odaka, Hirokazu

Subjects
Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, 02 engineering and technology, Photon energy, 01 natural sciences, Signal, 010309 optics, Machine learning, 0103 physical sciences, Computer vision, Sensitivity (control systems), Instrumentation, Compton camera, Physics, Event selection, business.industry, Detector, Experimental data, 021001 nanoscience & nanotechnology, Cadmium telluride photovoltaics, Hitomi, Electromagnetic shielding, Artificial intelligence, 0210 nano-technology, business
Abstract

Accepted: 2018-09-25, 資料番号: SA1190027000

Published
2019

2. Event-selection technique for the multi-layer Si[formula omitted]CdTe Compton camera onboard Hitomi.

Author

Ohno, Masanori, Fukazawa, Yasushi, Mizuno, Tsunefumi, Takahashi, Hiromitsu, Tanaka, Yasuyuki, Katsuta, Jun'ichiro, Kawano, Takafumi, Habata, Sho, Okada, Chiho, Ohashi, Norie, Teramae, Takuto, Tanaka, Koji, Takahashi, Tadayuki, Kokubun, Motohide, Watanabe, Shin, Sato, Goro, Sato, Rie, Ohta, Masayuki, Uchida, Yusuke, and Tamaru, Ryota

Subjects
*COMPTON imaging, *POLARISCOPE, *ASTRONOMICAL observations, *CAMERAS, *ENERGY bands, *SEMICONDUCTORS, *PHOTONS
Abstract

Abstract The soft gamma-ray detector (SGD) onboard Hitomi , which has a unique design concept, based on the combination of a "narrow-field multi-layer semi-conductor Compton camera", and an active shielding, realizes astronomical observations in the 60 − 600 keV energy band with a high sensitivity. Development of optimum event selection criteria is essential for deriving the best observational performance of the SGD, but it is challenging because many parameters such as the detected photon energy, the Compton-scattering angle, and distance of each hit, among others, are non-linearly correlated. In this study, we propose a new method for distinguishing the signal from the background in the multi-parameter space utilizing a machine-learning approach. Our preliminary result, which uses both on-ground experimental data with good photon statistics and flight data with real in-orbit background and signal information, suggests that this approach might a good guide for an optimal event selection by the Compton camera. [ABSTRACT FROM AUTHOR]

Published
2019
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