de Theoretieal Maximum Dose a. (Based on mated Rate Biological So. XR xk Attenuation Effective Bffectiz « Weathering Dose Factor Dese . Reesy) Faster _Facter (Colum (‘“elummsxD Froese time of fallout wmtil tires of evac.ation From time of evacu- ation to time of return From time of returr. to a time 15 days after initial falisut** From 15 days until one year after initial fallout we 1/2 1/2 3/& 3/4 l/aeee 4 3/h 1/zeee ui V2 , V3 HOE ONY tak "This estimate is pased on the concert that if eveouation were pot accomplished, then a certain radiation dose would be accumilated cver the period of time selected. This time period also representa the rediation dose saved if evacuation yarg sooomplished. *“#This assumes that the time of return cccurs before 15 days. A period of 15 days was selected to provide a dividing point between the time of initial exposare from fallout to « tims one year later. The 15 days has no unigue significance other than providing a basis on which to estimate the biological factor. *#*The value of 9/16 has deen rounded off te 12. ammo - oe Urs: