FOR ONLY ONE RADIOELEMENT (x) ye a Ay FOR TWO RADIOELEMENTS (x and y) . KB, - KB, A,B, - AB) y= KA, - KoAy ~ “BAL=BoA, BA, BoAy Zs is K, 1 (A,B, (A,B, - A.B.) A38, + K 2 (AzBy AB, - AB AyB3) © (A583 = ASB) + Cy (A3B, - AVB3) no theoretical oO ee AoC) B, (A,C, fre aT et (A 162 re + (B 1°2 Ag UB 12 ~~ + + + Oo B,(A,C, - AC.) + Bo (A3C, - A,C3) These equations are well There Ww K (AC, - AZCa) + Ky (AZC, ~- = 1 y Ay(Bobs = Baba) +Ay (Baby ~ Biba) i = + K, (BoC, - B4C,) + K, (B,C, - B,C) xX + FOR THREE RADIOELEMENTS (x, -y, and z) Aye) K, (A,B 12 - AoBy) ©, (A,B, AoBy) adapted for evaluation by digital limit to the number of simultaneously evaluated in this manner. radioelements which may be The trick is in knowing beforehand which radioelements are present in the specimen. -13- computers.

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