104
BENSON, GLEIT, AND LEVENTHAL
|
|
|
|
{
1
of
_
_
107!
—
—
—
—|
—
107?
—
RELATIVE ACTIVITY
|
—
—
1078
—
——
Ty+6 DAYS
1074 |
4
—_!
—
Ty +10 DAYS
Ty +100 DAYS
—
1075
0
—
|
200
|
400
{
|
|
600
800
1000
ABSORBER THICKNESS, MG/CM?2
1200
Fig. 4—Aluminum absorption measurements as a function of time.
1400