
%0 Journal Article
%A Lim, YK 
%T An Unusual Electron Shower
%J Australian Journal of Physics
%D 1955/12/01
%V 8
%N 4
%P 562-563
%K 
%R https://doi.org/10.1071/PH550562
%U https://www.publish.csiro.au/paper/PH550562 
%X Figure 1 depicts an event observed in a 600 µ glass-backed Ilford G5 emulsion. The shower occurred at point 0 as indicated by a sudden increase in grain density of the incident track. For the first 150 µ from 0 the grain density of all secondary tracks (which are not separated) is 46 ±4 grains per 50 (µ, approximately 3·5 times the plateau value (13·0 grains/50 µ). 200 µ from 0 five tracks are resolved and the sum of their grain densities is 64 ± 2 grains/50 µ, approximately five times plateau. These values suggest that one track originated some 150?200 µ from 0, although the possibility that it originated at 0 is not entirely excluded. 
