Kazuhide Okei    Department   Kawasaki Medical School  Kawasaki Medical School, Department of Natural Sciences,    Position   Assistant Professor
Article types	原著
Language	English
Peer review	Non peer reviewed
Title	The energy spectrum of primary cosmic rays obtained by using arrival time spread of air shower particles
Journal	Formal name：Proc. 31st International Cosmic Ray Conference Łódź
Volume, Issue, Page	HE1.3
Author and coauthor	H. Matsumoto, A. Iyono, I. Yamamoto, M. Kohata, K. Okei, S. Tsuji, T. Nakatsuka and N. Ochi
Publication date	2009/07