0.40 
0.35 
0.50 0.30 
Reflection Coefficient (avg) 
9° 
‘b 
a 
————— 
So 
ny 
a 
0.40 0.20 
5 
2 
‘o 
fo} 
oO 
c a 
aS re) 
3 = 
& wW 
3 Qs 
a © 
\ Ia 
J F 2D 
w 2 
Ss a 
mS 
Lg 
i =a 
| es 
>a 
2 RANGE <= 
| | oO @ 
020K 5 o @ 
a 9 6 6B 
AVG 8 
0.18 = 
ie) 50 100 180 200 
Cumulative Time (hr) 
Figure 6. Reflection coefficient variation in experiment 72A-10. 
24 
