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SciBar Cosmic Ray Telescope (SciCRT) at Mt. Sierra Negra, Mexico as a component muon detector of the Global Muon Detector Network (GMDN)

Aug 1, 2015, 3:30 PM
1h
Theater Foyer (World Forum)

Theater Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 9
Poster contribution SH-EX Poster 2 SH

Speaker

Prof. Kazuoki Munakata (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.)

Description

We plan to use the SciCRT as a new muon detector and fill a gap remaining in the viewing directions of the present GMDN which currently consists of four multi-directional muon detectors in Japan, Australia, Brazil and Kuwait. In order to minimize the data acquisition time, the muon measurement is triggered by the four-fold coincidence between pulses from the top and bottom pairs of the x- and y-layers of scintillation bars in SciCRT. In this paper, we analyze the muon trigger data recorded at the observation site, at the top of Mt. Sierra Negra (4,600 m above sea level), for one month of September, 2014. It is confirmed that the observed zenith angle and azimuth angle distributions of muon events are consistent with expectations from the response function of atmospheric muons to the primary galactic cosmic rays. We also analyze the observed temporal variation of the muon event rate and compare it with the observation by GMDN. We then evaluate the current performance of the SciCRT as a new component detector of GMDN.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 126

Primary author

Prof. Kazuoki Munakata (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.)

Co-authors

Dr A. Hurtado (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Prof. Akitoshi Oshima (College of Engineering, Chubu University, Kasugai 487-8501, JAPAN.) Prof. Chihiro Kato (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Mr Diego Lopez (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Dr E. Ortiz (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Dr Harufumi Tushiya (Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1195, JAPAN.) Prof. Hiroshi Kojima (Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, JAPAN.) Prof. Hisanori Takamaru (College of Engineering, Chubu University, Kasugai 487-8501, JAPAN.) Prof. J. F. Valdés-Galicia (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Dr Kyoko Watanabe (Institute of Space and Astronautical Science, Japan Aerospace Experiment Agency, Yoshinodai, Chuo-ku, Sagamihara 252-5210, JAPAN.) Dr L. X. González (SCiESMEX, Instituto de Geofísica, Unidad Michoacán, Universidad Nacional Autónoma de México, 58190, Morelia, Michoacán. Mexico.) Dr M. Anzorena (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Mr Masayoshi Kozai (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Dr O. Musalem (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Dr R. Garcia (Instituto de Geofísica, Universidad Nacional Autónoma de México, México, D.F., MEXICO.) Mr Rikiya Hikimochi (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Prof. Shoichi Shibata (College of Engineering, Chubu University, Kasugai 487-8501, JAPAN.) Mr Takaaki Nakajima (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Prof. Takashi Sako (Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, JAPAN.) Dr Tatsumi Koi (SLAC National Accelerator Laboratory, Menlo Park, CA 94025-7015, USA.) Mr Yoshiaki Nakamura (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Mr Yoshinori Sasai (Department of Physics, Shinshu University, Asahi, Matsumoto 390-8621, JAPAN.) Prof. Yoshitaka Itow (Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, JAPAN.) Prof. Yutaka Matsubara (Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, JAPAN.)

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