Performance of the Charge Detectors of CALET with relativistic ions

CALET is an all-calorimetric electron telescope in preparation for a launch to the International Space Station (ISS), where it will be installed on the Exposure Facility of the Japanese Experiment Module (JEM-EF). With observations over a period of five years, CALET will be able to unveil the presence of possible nearby sources of high energy electrons and search for signatures of dark matter. The instrument includes a two-layered Charge Detector (CHD) module of scintillator paddles designed to identify - via a measurement of their electric charge - individual nuclear species from proton to iron and to detect trans-iron elements. Complementary charge information is provided by the Imaging Calorimeter (IMC).