Question

Make a scale drawing of the Coulomb potential barrier encountered in the α-decay of ²³⁸U, for which the Q-value is 4.268 MeV. Assume that R = 1.5 A^1/3 fm (instead of using R_o = 1.2 fm) to account for the diffuseness of the nuclear surface. (See Figure 3.10 in Lilley.)

Calculate the distance b beyond which the α-particle kinetic energy is positive.

Answer 1

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