PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Direct, CRD)
Flux ratios of primary elements measured by CALET on the International Space Station
 Calet, O. Adriani, Y. Akaike, K. Asano, Y. Aaoka, E. Berti, G. Bigongiari, W.R. Binns, M. Bongi, P. Brogi, A. Bruno, N.W. Cannady, G. Castellini, C. Checchia*, W.R. Cherry, G. Collazuol, G.A. de Nolfo, K. Ebisawa, A.W. Ficklin, H. Fuke, S. Gonzi, T.G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M.H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H.S. Krawczynski, J.F. Krizmanic, P. Maestro, P.S. Marrocchesi, A.M. Messineo, J.W. Mitchell, S. Miyake, A. Moiseev, M. Mori, N. Mori, H.M. Motz, K. Munakata, S. Nakahira, J. Nishimura, S. Okuno, J. Ormes, S. Ozawa, L. Pacini, P. Pacini, B.F. Rauch, R. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J.P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida and W.V. Zoberet al. (click to show)
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Pre-published on: August 08, 2023
Published on: —
Abstract
The study of flux ratios of cosmic-ray primary elements is of particular interest not only to assess
the relative abundance of each element, but also to gain a deeper understanding of their propagation
in the galaxy. High energy cosmic ray data are the best candidate for this purpose as convection,
nuclear decay, and energy degradation can be neglected during their propagation. CALET on
the International Space Station has been measuring the flux of several primary elements from
proton to nickel for 7 years to date. In this contribution, the flux ratios of heavy primary elements
to lighter primaries will be shown, extending the energy range already investigated by previous
measurements.
DOI: https://doi.org/10.22323/1.444.0093
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