21 1} might say. One assumption is that the fallout occurred in 2} the third hour after detonation. The second, and probably one of the most important, that this material was spread out 4 to provide a thickness of 5 about 40 micron thickness. 6 The rest of the assumptions, q , 8 DR. BUGHER: .01 of a gram per square centimeter Here is one that is wide open. I think, are not too far off. That was also based on the activity from John Harley's figure. 9 DR. DUNNING: Yes, sir, there is another very 10 important assumption that would have to be looked at closely. e 11] That is the specific activity was 3.1 times 10 to the 8th 5 12 disintegrations per minute per gram on April 7. as 13 32 14] say just a matter -- back again, assuming 1.2, and then you 3 15 come up with a specific activity on the third hour after 16 detonation. 17 deposited, 18 tion in theskin, we come up with the calculations as to the 19 dose that 7 milli grams per square centimeter tow the surface. Then it was just a matter of extrapolating -- I 20 DR. DUNNING: mes ARG 23 What was the activity per gram on that 3.5 times to the llth. 23 this is the figure we want. 24 the answer. 25 4 rue and using Rossi's calculations as to self absorp- basis? "2 ne of TOOL Depart? iabecirea istori - con8 Then with the assumption of so much material DR. BUGHER: 24 ARC - If you accept: 1.2, I believe that is about That is in terms of disintegrations per minute per gram. | ¥ Xs