Measurement of the cosmic-ray secondary-to-primary ratios with CALET on the International Space Station

Abstract

aWaseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku-ku, Tokyo 162-0044, Japan bJEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8508, Japan cDepartment of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy dINFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 56127 Pisa, Italy E-mail: [email protected]