
%0 Journal Article
%A Clay, RW 
%A Thornton, GJ 
%T Zenith Angle Dependence of Cosmic Ray Shower Development from Observations of the Time Structure of Atmospheric Cerenkov Pulses
%J Australian Journal of Physics
%D 1980/06/01
%V 33
%N 3
%P 607-606
%K 
%R https://doi.org/10.1071/PH800607
%U https://www.publish.csiro.au/paper/PH800607 
%X The attenuation of extensive air showers has been studied using atmospheric Cerenkov techniques. Observations over a range of zenith angles are correlated and an attenuation length of 234 ± 38 g cm ? 2 obtained for showers with sea-level sizes of ~ 106 ? 
