@article{e0096e70f22f4531af9c51f37f14394e,
title = "Measurement of the cosmic-ray secondary-to-primary ratios with CALET on the International Space Station",
abstract = "The CALorimetric Electron Telescope, CALET, has been measuring high-energy cosmic rays on the International Space Station since October 2015. One of the scientific objectives of the CALET mission is the precise measurements of the energy spectra of individual cosmic-ray nuclei and the energy dependence of secondary-to-primary abundance ratio to reveal the detail of the cosmic-ray acceleration and propagation in the Galaxy. The instrument, consisting of two layers of segmented plastic scintillators, a 3 radiation length thick tungsten-scintillating fiber imaging calorimeter, and a 27 radiation length thick PWO calorimeter, has capabilities to identify individual nuclei elements up to Z = 40 with excellent charge resolution and cover the wide energy range from 10 GeV to a PeV scale. Long-term observation with CALET for over five years of operation allows to investigate the TeV region of the secondary components. In this paper, the details about the analysis of boron spectrum and boron-to-carbon ratio and their preliminary results will be presented.",
author = "{CALET Collaboration} and Yosui Akaike and Paolo Maestro and O. Adriani and K. Asano and Y. Asaoka and E. Berti and G. Bigongiari and Binns, {W. R.} and M. Bongi and P. Brogi and A. Bruno and Buckley, {J. H.} and N. Cannady and G. Castellini and C. Checchia and Cherry, {M. L.} and G. Collazuol and K. Ebisawa and Ficklin, {A. W.} and H. Fuke and S. Gonzi and Guzik, {T. G.} and T. Hams and K. Hibino and M. Ichimura and K. Ioka and W. Ishizaki and Israel, {M. H.} and K. Kasahara and J. Kataoka and R. Kataoka and Y. Katayose and C. Kato and N. Kawanaka and Y. Kawakubo and K. Kobayashi and K. Kohri and Krawczynski, {H. S.} and Krizmanic, {J. F.} and Marrocchesi, {P. S.} and Messineo, {A. M.} and Mitchell, {J. W.} and S. Miyake and Moiseev, {A. A.} and M. Mori and N. Mori and Motz, {H. M.} and K. Munakata and S. Nakahira and K. Yoshida",
note = "Funding Information: We gratefully acknowledge JAXA{\textquoteright}s contributions to the development of CALET and to the operations on the International Space Station. We also wish to express our sincere gratitude to ASI and NASA for their support of CALET project. This work was supported by JSPS KAKENHI Grant Numbers 20K22352 and 21K03592. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 37th International Cosmic Ray Conference, ICRC 2021 ; Conference date: 12-07-2021 Through 23-07-2021",
year = "2022",
month = mar,
day = "18",
language = "English",
volume = "395",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",
}