gue
GO.
Tne average beta erergy is 0.5 wev.
E,
The gamma dose is neglizgitlie sorperec to the beta dose.
G
do
At
t
dis
Sis
aX.
0613 - 1135
4.3 hrs
3 brs
deli
1130 = L446
3.< hrs
—
2.3%
WUi5- 145
4.9 brs
11.5 brs
LEAS = 2322
he hers
23% = 0635
#5635 © 1635
brs
we
15.
wi.
3.90
6.3
21.26
63x17
2.1
0.63
252% bre
Ask x 107
1.50
0.5
7.5 bra
21.5 bre
1.4 x 107
0,087
0.02
12.0 hrs
31.5 brs
bx 10
0,15
6.03
®az cured
Samrie Calculations
Lm batghe? £6, 2 eZ
Let:
ty = 53 hour:
DOE
t, 2 22°4 hours (13 weeks)
r 2 pe
b= (5)(3 x 2.22 219% x 65)(3)Pe2 fyn0-2 & zreg~-F
=Z44% 1° disintegrations from 3rd hour to 13th week.
Accumet E
ave
Be
@0.5 Mev
(4.4 x 107) (0.8) (1.6 x 1076) (Se) (94 ) = 4.2 x 107 reps
42 mreys
Total Lung Dose for 13 weeke:
ee
~~ 125 mre:s
i
Me ee mae
79