Interaction in atmosphere with formation of particle dense jets and halo

Using a modified X-ray-emulsion chamber of original design of the Hadron-HH facility, interaction with the energy exceeding 1015 eV is recorded in which dense jets of particles, coming from the atmosphere and halo, produced under lead in XREC are observed. The results presented can testify to the existence of atmospheric shower microstructure and can be used to determined the possible mechanism of production of such jets