
TY  - JOUR
A1  - Lim, YK 
T1  - An Unusual Electron Shower
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1955
VL  - 8
IS  - 4
SP  - 562
EP  - 563
KW  - 
UR  - https://doi.org/10.1071/PH550562 
N2  - 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. 
ER  -

