Note on Large Cosmic-Ray Bursts in an Unshielded Ionization Chamber

Abstract

Large cosmic-ray bursts as recorded with an unshielded ionization chamber have been found to be coincident with extensive atmospheric (Auger) showers as detected with Geiger-Müller counters. The experiments show that the bursts observed in the ionization chamber represent regions of very high particle density in an Auger shower. The integral size-frequency distribution curve of these bursts is approximated by an inverse power law with an exponent 2.15±0.35.