Search for gamma-quanta with energy about 10 to the 15th eV in the primary cosmic radiation

The extensive air showers (EAS) experimental data, registered with the help of the Tien Shan array during the effective running time of 17,461 hours, have been analyzed. On the basis of EAS, poor in muons with energy greater than GeV and in high energy hadrons, the primary flux of the gamma-quanta was estimated. 9 references.