Speaker
Description
The CALorimetric Electron Telescope (CALET) has been in operation on the International Space Station since October 2015, providing more than a decade of continuous and stable observations of high-energy cosmic rays and gamma rays. The mission aims to search for nearby cosmic-ray sources and dark matter signatures through precise measurements of cosmic-ray electrons, and to investigate cosmic-ray acceleration and propagation via measurements of the energy spectra of individual elements from protons to heavy nuclei. Over this extended observation period, CALET has revealed several notable features in cosmic-ray spectra. These include a spectral break around 1 TeV in the all-electron spectrum, as well as spectral hardening and softening in the TeV region for protons, helium, and heavier nuclei. The measured spectra extend toward the PeV scale. In this presentation, we summarize the latest CALET results based on more than a decade of observations, with an emphasis on high-energy spectral features and the long-term performance and stability of the detector in orbit.
