Astrophysics and Astronomy Commons^™

Cosmic Ray Air Shower Lateral Coincidences, Gordon C. Mcintosh

2017 Academic High Altitude Conference

At the University of Minnesota, Morris, my students and I have begun to investigate the time and altitude dependence of air showers. Air showers are cosmic ray secondaries that spread out laterally around the primary cosmic ray direction. To investigate the air showers we have been measuring the lateral coincidences among three Aware RM60 Geiger counters located at 0 cm, 15 cm, and 40 cm. Most of these measurements have been carried out at the surface. The rate of lateral, triple coincidences of Geiger counter with this configuration is 0.053 ±0.013 hr^-1 at the surface. On 4 April 2015 …