Speaker
Description
The main source of information about high-energy cosmic rays (above 1015 eV) are extensive air showers (EAS), which are formed as a result of interaction of primary cosmic rays (PCR) with nuclei of atmospheric atom. In the energy range from 1015 to 1017 eV the PCR energy spectrum, reconstructed by the data of EAS experiments, has features which cannot be explained within the frameworks of existing models of cosmic ray origin.
To study air-shower in the energy range 1015–1017 eV, the NEVOD-EAS array was constructed at the MEPhI (Moscow). It consists of 9 clusters deployed around the Experimental Complex NEVOD. The cluster includes 4 detector stations measuring energy deposit and arrival time of secondary EAS particles.
The technique for reconstructing air-shower parameters and PCR energy spectrum based on the response of the NEVOD-EAS array is described. It has been tested using the simulation in the CORSIKA program and the QGSJET-II-04 + FLUKA hadronic interaction model. In total 3 000 000 air-showers from primary protons and iron nuclei have been analyzed in the energy range 1014-1017 eV. The results of reconstruction of the primary particles energy based on the developed technique are presented.
