Research theme for competitive and other funds (10)：
2013 - 2015 R&D of an active mirror control system of the large telescope for the CTA project
2008 - 2010 Calibrations of atmospheric fluorescence detectors of the Telescope Array experiment using a portable UV laser
2003 - 2008 Construction of the air fluorescence telescope and establishing the stereo observation method
2006 - 2007 Precise measurement of the atmospheric transparency for the cosmic ray energy calibration in the TA experiment
2000 - 2002 Study of Extremely High Energy Cosmic Rays beyond Greisen Cut off (10^<20>eV)
1999 - 2001 Study of the highest energy cosmic rays with air fluorescence technique
1997 - 1999 Chaos in Cosmic Ray Air Showers
1996 - 1998 7素子宇宙線望遠鏡による超高エネルギー宇宙物理学
1995 - 1998 The Study of the Highest Energy Cosmic Ray
1988 - 1989 Observation of Small Air Shower Lasted in Short Arriving Time
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Papers (24)：
R. U. Abbasi, Y. Abe, T. Abu-Zayyad, M. Allen, Y. Arai, R. Arimura, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, et al. The energy spectrum of cosmic rays measured by the Telescope Array using 10 years of fluorescence detector data. Astroparticle Physics. 2023. 151
R. U. Abbasi, M. M.F. Saba, J. W. Belz, P. R. Krehbiel, W. Rison, N. Kieu, D. R. da Silva, M. A. Stanley, Dan Rodeheffer, J. Remington, et al. First High-Speed Video Camera Observations of a Lightning Flash Associated With a Downward Terrestrial Gamma-Ray Flash. Geophysical Research Letters. 2023. 50. 14
R. U. Abbasi, T. Abu-Zayyad, M. Allen, Y. Arai, R. Arimura, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, I. Buckland, et al. Observation of variations in cosmic ray single count rates during thunderstorms and implications for large-scale electric field changes. Physical Review D. 2022. 105. 6
R. U. Abbasi, M. Abe, T. Abu-Zayyad, M. Allen, Y. Arai, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, et al. The Cosmic-Ray Composition between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode. ASTROPHYSICAL JOURNAL. 2021. 909. 2
Nozaki S., Okumura A., Orito R., Kajiwara Y., Katagiri H., Kushida J., Kubo H., Gunji S., Kobayashi S., Saito T., et al. CTA Report 160: Status of the mono analysis for the LST proposed for CTA. Meeting Abstracts of the Physical Society of Japan. 2020. 75. 440-440
Ohishi Michiko, Iwamura Yuki, Ohtani Yoshiki, Ogata Tomoyuki, Okumura Akira, Orito Reiko, Katagiri Hideaki, Kushida Junko, Gunji Shuichi, Kobayashi Yukiho, et al. CTA Report 156: Evaluation of effect of uncertainty in hadronic interaction models on the estimation of CTA sensitivity. Meeting Abstracts of the Physical Society of Japan. 2019. 74. 359-359
Ohishi Michiko, Sasai Yoshinori, Takahashi Tomoya, Taneda Yuki, Chikawa Michiyuki, Nakamori Takeshi, Nishijina Kyoshi, Miura Chika, Yoshikoshi Takanori, Yoshida Tatsuo, et al. CTA report 132: A simulation study on CTA performance for the measurement of electron/positron spectrum in TeV region(III). Meeting Abstracts of the Physical Society of Japan. 2018. 73. 487-487
Sasai Yoshinori, Sakaki Naoto, Takahashi Tomoya, Tajima Hiroyasu, Taneda Yuki, Chikawa Michiyuki, Nakamura Yuki, Nakamori Takeshi, Nishijina Kyoshi, Fujihara Chikako, et al. CTA report 143: Evaluation of the sensitivity of the Small-Sized Telescopes under moonlight. Meeting Abstracts of the Physical Society of Japan. 2018. 73. 192-192
Ohishi Michiko, Nishijima Kyoshi, Miura Chika, Yoshikoshi Takanori, Yoshida Tatsuo, Ri Ken, the CTA-Japan, Inada Tomohiro, Okumura Akira, Katagiri Hideaki, et al. CTA Report 124: A simulation study of CTA performance for measurement of electron/positron spectrum in TeV region(II). Meeting Abstracts of the Physical Society of Japan. 2017. 72. 356-356
