Reflection Coefficient 
Reflection Coefficient 
0.15 
0.10 
0.05 
; 72B-06 
O 50 100 150 
Cumulative Time (hr) 
0.15 
0.10 
0.05 
5 72B-10 
(0) 50 100 150 
Cumulative Time (hr) 
Figure 1. Reflection coefficient variation 
in fixed-bed tanks. 
