2003 article

Primary Proton and Helium Spectra Observed by RUNJOB Collaboration

M. Furukawa, V. I. Galkin, M. Hareyama, Yuichi Hirakawa, M. Ichimura, N. Inoue, Eiji Kamioka, Tadashi Kobayashi, V. Kopenkin, S. Kuramata, A.K. Managadze, H. Matsutani, N. P. Misnikova, Р. А. Мухамедшин, S. Nagasawa, Ryo Nakano, M. Namiki, H. Nanjo, S. N. Nazarov, Shigemi Ohta, Hiromi Ohtomo, D. S. Oshuev, P. A. Publichenko, I.V. Rakobolskaya, T. Roganova, G. P. Sazhina, H. Semba, T.-A. Shibata, D. Shuto, H. Sugimoto, Л. Г. Свешникова, R. Tanaka, Nobuo Yajima, T. Yamagami, I. V. Yashin, E. A. Zamchalva, Г. Т. Зацепин, I. S. Zayarnaya

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Le résumé fourni par la source

From 1995 through 1999, RUssian Nippon JOint Balloon collaboration (RUNJOB) had 10 successful balloon flights to observe primary cosmic rays by emulsion chambers. We have reported the half of the total exposure, 575 m hour and in this paper we will report the spectra of protons and alpha particles, using all the data with sum of gamma ray energies greater than 5 TeV, though some chambers are scanned for the lower energy events. And we have got the spectra up to 10 eV/nucleon. We also report the technical details for the energy determination method newly employed, basing on the lateral spread of cascade showers. pp. 1837–1840 c ©2003 by Universal Academy Press, Inc.

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Les sujets associés

Dark Matter and Cosmic PhenomenaAstrophysics and Cosmic PhenomenaRadiation Therapy and Dosimetry

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