ИСТИНА

KLYPVE-EUSO is a mission led by the Russian Space Agency to place an ultra-high energy cosmic ray observatory on board the Russian Segment (RS) of the ISS. The concept of the detector is based on the mirror-type detector proposed by SINP MSU in 2010 as a development of the TUS project. KLYPVE-EUSO concept was recently improved by the joint studies of SINP MSU and the JEM-EUSO collaboration. A new version of the detector takes into account the experience of the TUS detector measurements, the JEM-EUSO previous developments and recent achievements in optics simulations, electronics manufacturing and data processing system design. The current configuration is based on a Schmidt type optical system with the diameter of the entrance pupil of 2.5 m and the diameter of the main mirror of 4 m. This allows increasing the field of view of the detector to 40 degrees and makes the experiment competitive compared with large ground based observatories, with the advantage of a uniform exposure over the whole celestial sphere. A modular structure of the photo detector, the same as for the JEM-EUSO concept, is used in the K-EUSO project with a new type of digital electronics based of the system-on-chip FPGA. The launch of the experiment is scheduled to 2022 followed by installation on the RS of the ISS and at least two years of operation.