KELL2OG8 (continued) in which we are interested, in the vicinity of the is about ons fon pair per cubic centinster per second, Is this ri right—-te those who might be acre faniliar with eosnic worked backward, using the recoabination coefficient the ' numer of atuospheric ions, and caze to the conclusion phat it woals be about one per cuble canrtineter per second froalccsaie rays at around 20 kilosvters...,What's that? BETHEs That sounds rather low, KELLOGG: Low? HOLZER? Yes, I think it is low, Will. LLOOOs Well, the nuzber that was aantioned wasa thousand atandpherie iens per cuble centizeter. wpete” lo ee owe fa LS PeeSS wb WYCKOFF(?)s The mobility is very high up there, you know, . KELLOGOs Fell, just taking the nuaber of ion paire—thisausber wis JoltEBay. nentiqned—end if one uses the usual 10° for a resombins ion coefficient of atacspheric ions, then one concludes that 3,000 ion petra ser cuble centineter and this rate of r cabina~ tien would be equilitrius for one fon pal produced par centineter per second, . I think that we could raise this by a factor of 10 eas Is it a facter of core than 10? Well anyway, the number jon pairs forned by atomic cloud 20 KT, and roughly the 199