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. . t ee —_ \ AL Pato| DORIA | ater -—