Аннотация:A new approach to obtaining high-energy ions from KrXe cluster jet when irradiated with relativistic (6x10^18 W/cm2) femtosecond laser pulses is proposed, based on the formation of clusters with a core of Xe surrounded by Kr shell. The appearance of accelerated Kr ions selected by the charge state was registered. The maximum Kr ions energy was 1-1.5 MeV per unit charge.