Assuzet
Average activity for 30 minutes is 0.3 pe at 143 to H43$ hours
(See reference Appendix #.)
! 3
‘Thent 0. x 2.2 x 10° x 30 © 3.3 x 107 disintegrationa/30 minutes,
"
At surface of imaginary sphere 1.0 mm in radius the dose rate is
6
2.52 x 10= Tisintegration
(See Appendix EB)
(3.3 x 10’){2.52 x 10%) 2 8.3 x 10 mreps/30 mins,
~
é
2 8 rleps/30 nines
a.
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t
ee
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