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Eszimate of Dese at Surface of Tmazinary Srhere One Millimeter
in Pacis
te
Assumes
Thens
Averz: 2 set tvity for 3D minutes is U5 pO 8tH fF Bte Kf theme
(See
>eference appendix i.)
u.5 x 2.2 x yu® x 20 = 3.3 x 10! Gisinbegrations/3U minvics.
At surface of imaciniry sphere 1.0 mm in radivs the dos«. rate
a point source is
2.52 x 1074 —mreps_____(See appendix E.
disintegration
Ppe
fron
)
(3.3 x lv’) (2.52 x 174) = 2,3 x 10? mreps/30 min.
rt
= 8 reps/2u mir.
For particles of higher
Higher, of courss:.
specific activity, the dose would te cocrzspondlavly
- 7, ~ Leahy
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