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Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1992

Akeno Giant Air Shower Array (AGASA) covering 100 km2 area

N. Chiba; K. Hashimoto; N. Hayashida; K. Honda; M. Honda; N. Inoue; F. Kakimoto; Keigo Kamata; S. Kawaguchi; Norio Kawasumi; Y. Matsubara; K. Murakami; M. Nagano; S. Ogio; H. Ohoka; To. Saito; Y. Sakuma; Itsuro Tsushima; M. Teshima; T. Umezawa; Shohei Yoshida; H. Yoshii

A very large surface array has been constructed recently at Akeno, 120 km west of Tokyo, to study the spectral features of the primary cosmic ray energy spectrum at the highest energies and to search for discrete sources emitting cosmic rays at energies above 1017 eV. The new array, AGASA (Akeno Giant Air Shower Array) spread over an area of about 100 km2, consists of 111 scintillation detectors, each 2.2 m2 in area and 27 muon detectors of six different sizes. The distance between the detectors is about 1 km. The data acquisition network developed for AGASA links detectors with each other and with the four branch controllers with two optical-fiber cables for all communications. We present here the salient design features of AGASA and discuss the estimates of the accuracy in the determination of arrival direction and primary energy of showers expected to be achieved with AGASA.


Archive | 2001

Anisotropy of cosmic-ray arrival direction at 1018eV observed by AGASA

M. Teshima; M. Chikawa; M. Fukushima; N. Hayashida; Kohei Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Shigeyuki Kakizawa; Keigo Kamata; S. Kawaguchi; S. Kawakami; Y. Kawasaki; Norio Kawasumi; E. Kusano; A. M. Mahrous; Kenichi Mase; Taisuke Minagawa; Y. Morizane; M. Nagano; H. Ohoka; Satoko Osone; Nobuhiro Sakaki; Makoto Sasaki; Masaki Sasano; Kenji Shinozaki; M. Takeda; R. Torii; Itsuro Tsushima; Yukio Uchihori


NUCL PHYS B-PROC SUPPL | 1998

Recent results from the AGASA experiment

N. Hayashida; Kohei Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Keigo Kamata; S. Kawaguchi; Y. Kawasaki; Norio Kawasumi; Hidemitsu Kitamura; E. Kusano; Y. Matsubara; Kazuaki Murakami; Motohiko Nagano; D. Nishikawa; H. Ohoka; Nobuhiro Sakaki; Makoto Sasaki; Kenji Shinozaki; N. Souma; M. Takeda; M. Teshima; R. Torii; Itsuro Tsushima; Yukio Uchihori; Tetsuya Yamamoto; Shuhei Yoshida; H. Yoshii


Archive | 1979

The Akeno Air Shower Project

T. Hara; Y. Hatano; N. Hayashida; F. Ishikawa; N. Jogo; Keigo Kamata; T. Kifune; Motohiko Nagano; Yutaka Ohno; H. Ohoka; Rodney H. Torii; G. Tanahashi; Marshall Crouch; S. Kawaguchi; N. Nii; M. Machida; T. Matano; Kozo Ohta; H. Sakuyama; K. Jitsuno; K. Hashimoto; K. Honda; Norio Kawasumi; Itsuro Tsushima; F. Arimura; N. Awaji; Yutaka Hayashi; Nobukazu Ito; S. Kawakami; N. Hasebe


Archive | 2001

Properties of EHE gamma-ray initiated air showers and their search by AGASA

Kenji Shinozaki; M. Chikawa; M. Fukushima; N. Hayashida; Kohei Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Shigeyuki Kakizawa; Keigo Kamata; S. Kawaguchi; S. Kawakami; Y. Kawasaki; Norio Kawasumi; E. Kusano; A. M. Mahrous; Kenichi Mase; Taisuke Minagawa; Y. Morizane; Motohiko Nagano; H. Ohoka; Satoko Osone; Nobuhiro Sakaki; Makoto Sasaki; Masaki Sasano; M. Takeda; M. Teshima; R. Torii; Itsuro Tsushima; Yukio Uchihori


Archive | 2001

Energy spectrum above 3 x 1018 EV observed with AGASA

M. Chikawa; M. Fukushima; N. Hayashida; Kohei Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Shigeyuki Kakizawa; Keigo Kamata; S. Kawaguchi; S. Kawakami; Y. Kawasaki; Norio Kawasumi; E. Kusano; A. M. Mahrous; Kenichi Mase; Taisuke Minagawa; Y. Morizane; Motohiko Nagano; H. Ohoka; Satoko Osone; Nobuhiro Sakaki; Makoto Sasaki; Masaki Sasano; Kenji Shinozaki; M. Takeda; M. Teshima; R. Torii; Itsuro Tsushima; Yukio Uchihori


Archive | 2001

Muon component in giant air showers with energies greater than 1018.5EV observed by AGASA

N. Inoue; M. Chikawa; M. Fukushima; N. Hayashida; Kohei Honda; Kenichi Kadota; F. Kakimoto; Shigeyuki Kakizawa; Keigo Kamata; S. Kawaguchi; S. Kawakami; Y. Kawasaki; Norio Kawasumi; E. Kusano; A. M. Mahrous; Kenichi Mase; Taisuke Minagawa; Y. Morizane; M. Nagano; H. Ohoka; Satoko Osone; Nobuhiro Sakaki; Makoto Sasaki; Masaki Sasano; Kenji Shinozaki; M. Takeda; M. Teshima; R. Torii; Itsuro Tsushima; Yukio Uchihori


Archive | 1997

The Cosmic Ray Energy Spectrum above 1019 eV Determined by AGASA

N. Hayashida; K. sHonda; M. Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Keigo Kamata; S. Kawaguchi; Y. Kawasaki; Norio Kawasumi; Hidemitsu Kitamura; Herve Lafoux; Y. Matsubara; Kazuaki Murakami; Motohiko Nagano; D. Nishikawa; H. Ohoka; Nobuhiro Sakaki; Makoto Sasaki; N. Souma; M. Takeda; M. Teshima; Itsuro Tsushima; Yukio Uchihori; Shuhei Yoshida; H. Yoshii


Archive | 1997

Muons in Giant Air Showers Observed by AGASA and its Implications

N. Hayashida; Kohei Honda; M. Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Keigo Kamata; S. Kawaguchi; Y. Kawasaki; Norio Kawasumi; Hidemitsu Kitamura; Herve Lafoux; Y. Matsubara; Kazuaki Murakami; Motohiko Nagano; D. Nishikawa; H. Ohoka; Nobuhiro Sakaki; Makoto Sasaki; N. Souma; M. Takeda; M. Teshima; Itsuro Tsushima; Yukio Uchihori; Shuhei Yoshida; H. Yoshii


Archive | 1997

Arrival Direction Distribution of Extremely High Energy Cosmic Rays Recorded by AGASA

N. Hayashida; Kohei Honda; M. Honda; N. Inoue; Kenichi Kadota; F. Kakimoto; Keigo Kamata; S. Kawaguchi; Y. Kawasaki; Norio Kawasumi; Hidemitsu Kitamura; E. Kusano; Herve Lafoux; Y. Matsubara; Kazuaki Murakami; Motohiko Nagano; D. Nishikawa; H. Ohoka; Nobuhiro Sakaki; Makoto Sasaki; N. Souma; M. Takeda; M. Teshima; Itsuro Tsushima; Yukio Uchihori; Shuhei Yoshida; H. Yoshii

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F. Kakimoto

Tokyo Institute of Technology

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Kazuaki Murakami

Nagoya University of Foreign Studies

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