Degradation of Gamma-Ray Energy. 



767 



Substituting the value /3 = 0*5 in equation (4), we can 

 calculate the relative scattering to be expected at various 

 angles. The result is shown in the solid curve of figure 3. 



Fig. 3. 



Curves showing intensity at different angles with motion of oscillatci 



whose velocity is (3C. 

 Solid circles writer's, open circles Kohlrausch's values of relative 



intensity of gamma rays. 



The solid circles in this figure represent th« writer's obser- 

 vations on aluminium, as given in Table IV. The open 

 circles at the small angles show the results of! Kohlrausch 

 referred to the writer's value at 45°. It is not impossible 



3E 2 



