126 



CONDENSATION OF VAPOR AS INDUCED BY NUCLEI AND IONS. 



TABLE 52. Decay of weak ionization. Radium at D = ^o cm. Bar. 76.3 cm.; temp. 

 24-oC.; #3=22.3; dpa/P = 0.292. Above fog limit of air. <J/>' = 23 . 8 cm. 



1 Subsequent. 



2 Initial. 



60 



QjSec. to ZO 30 40 50 60 



Otec, 10 ZO 30 40 50 



FIG. 42. Decay of ionization n in fog chamber in lapse of seconds for different initial 

 ionizations and different exhaustions. 



FIG. 43. Coefficients of decay referred to thousands of nuclei per cubic centimeter for 

 different initial exhaustions n . 



FIG. 44. Decay of ionization in fog chamber in lapse of seconds for different initial 

 ionization. 



