ALDOR Assume: a. Joint source b. 0.5 Mev average beta enargy a.‘ Rate of decay follow t7!-- ec. jee lo er~/gn The dose delivered at the surface of an ‘raginary sphere at distance K from a point source.” (1) E(R) © Substitutingim (2) we grec where: @ 10 em/ga Be 0.5 hev, dose deliwered at the surface of an imaginary sphere at distance F average energy of bete particles total number of disintagrations E(Rj & C Al L vases abserstion coefficient K(R) 3 2.30" <— tev... gorecisintegrat Lor (3.a.) 6. KCK; = tom > ar 6.3¢ ae | pi airace (Goby BG Be gme x gt Re Equation (3.4 disintegration | DOE/\\ plotte, an the attacher graph. FOr. FPISSIGN PRCDUCT where: a, = Jisintegrations per unit tine at time “a® after detonat io: Az @ disintegrat‘ions -er unit tine af one unit of tine after Si “Rossi, Hail, and Ellis, B.N, "DistributedBets ‘ources in Uniformly absorbing Media" Mygleonisg July 19%, ¥. 7, Be - Ame . "oy ig. if mS. frites. Wee + Then: Rep