Radio-Activity

by Ernest Rutherford

and, in the course of the next half alternation,

E₀ + E₁

-------- K

d

towards the plate A.

If x₁ is less than d, the greatest distances x₁, x₂ passed over by the positive carrier during two succeeding half alternations is thus given by

E₀ – E₁

x₁ = --------- KT

d

and