Possibility of Observing Solar Neutron Events in the Lower Atmosphere

摘要

Neutron monitor data on 8 solar flares accompanied by gamma-rays and 10 solar flares accompanied by large X-ray (25 to 500 keV) fluxes were analyzed. Results show that the solar energetic neutron events can be detected by ground-based stations particularly when they are located at mountain altitudes and low latitudes. Suggestions for improving the neutron monitor efficiency for detecting solar neutron events are given.