the attempt frequency of an [math]\alpha[/math] particle to escape the nucleus is the number of times per seconds it collides with the nuclear barrier. Estimate this collision frequency in the tunneling model forthe [math]\alpha[/math] decay of thorium assuming the [math]\alpha[/math] behaves like a true particle inside the nucleus with total energy equal to the observed kinetic energy of decay. the daughter nucleus for this case (radium) has z=88 and a radşus of 9.00 fm. take the overall nuclear barrier 30.0 MeV measured from the bottom of the nuclearwell to the top of the coulomb barrier.
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