Cosmic ray intensity variations in the 24th solar cycle observed by LAAS experiments

Naoki Wadaa , Atsushi Iyono , Hiroki Matsumoto , Kazuhide Okei , Shuhei Tsuji , Soji Ohara ,Nobuaki Ochi , Nobusuke Takahashi , Takao Nakatsuka , Isao Yamamoto and Saya Yamamoto

Soalr Cosmic Ray, Flare, 24th solar cycle
In Large Area Air Shower experiments, one of EAS arrays is deployed on the second floor of
four stories building in the campus of Okayama University of Science to limit the zenith angle
acceptance of muon detection. This system provide EAS muon intensities from zenith solid
angles. To compare these intensities with solar activities such as flares, CME and magneticstorms,
LAAS data have been analyzed. Faster data acquisition with Ha/CaK solar telescope
have also been carried out. In this presentation, cosmic ray variations for four years since 2011
are going to be reported as well as fast image data.
The 34th International Cosmic Ray Conference

Proceedings of Science

PoS

ICRC2015

70

77