KELLOGs (continued) L are very quickly discharred and would fluctuate rapidly f unit minus to unit plus and back to neutral again because] of collecting small fons in the air, and the samo would be general of the szali radioactive particles, They also ve neutralized rapidly by the large atmospherics ion contest, so 4t appears that we could not invoke any electrical charges the cause of ccagulation, as Mowevor, if we just went back more or less classical mechanical model and looked at Brownian in motion would do, where we had certain concentfatian of cloud droplets and a certain concentration of radioactive of less than about .01 microns to the cloud droplets... quite effective in the course of an hour, "hen we ge to lerger particle, that 42 between .Ol micron and about 1 then Brownian motion becomes quite unimportent and the turbulent motion would bring these particles togethers, T| hope you will stop me, Sten, if I say anything that is differibg . from your findings, The turbulent motion can account for es Blow collection by the cloud droplets of the radioactive materisl, but it is mich slower, | Thia slide is just a of the calculation in which, to demonstrate the factorn | ved, some specific asmmptions have been rade about the conditions, but it could te calculated for other conditions and gi the pase results, This is a logarit mie scale of particlD essentially diameter - that is diareter of radioactive perticlesa — starting herejwith a Ranqntonnnt af Tis arn a 36