Intensity of protons at the "knee" of the cosmic ray spectrum

To Saito, T. Yuda*, K. Kasahara, Shoji Torii, N. Hotta, M. Sakata, Y. Yamamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A detailed study on the simultaneous observation of air showers and high energy families has been done through a Monte Carlo simulation. The simulation results are compared with the experimental data obtained at Mt. Norikura to obtain for the first time the absolute flux values of primary protons at energies around 1015-1016 eV. A large-scale hybrid experiment of air shower array and emulsion chamber at high altitude can provide unique information about the primary composition at energies around 1015-1017 eV. In particular the proton spectrum at the "knee" energy region can be obtained with accuracy better than 30%.

Original languageEnglish
Pages (from-to)257-267
Number of pages11
JournalAstroparticle Physics
Issue number3
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics


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