(a) write down the reaction describing the decay of 11Na 22 to 10Ne 22 . Calculate the endpoint energy (i.e., maximum kinetic energy) for the particle emitted by the 11Na 22 nucleus in this decay. The atomic masses of 11Na 22 and 10Ne 22 are 21.99444 u and 21.99139 u, respectively.
Hint: Study the discussion on Pages 9-1 to 9-5 of the lecture notes.
(b) An potassium-40 nucleus recoils as a result of emitting a 1.46 MeV gamma ray. Calculate the recoil speed of the nucleus. Note: Atomic mass of potassium-40 is 39.964 u.
Hint: Study the discussion on Pages 10-1 and 10-2 of the lecture notes.
(a) write down the reaction describing the decay of 11Na 22 to 10Ne 22 . Calculate...
(Figure 1) shows the decay scheme for 137Cs, which has two possible beta decay modes. The first, labeled β1, is a decay directly to the ground state of 137Ba. The second beta decay (β2) is to an excited state 137Ba∗. This excited state subsequently undergoes gamma decay to the ground state. In beta decay, the maximum possible energy of the emitted beta particle is equal to the difference in energy between the initial and final states of the nucleus. The...
(Figure 1) shows the decay scheme for 137Cs, which has two possible beta decay modes. The first, labeled β1, is a decay directly to the ground state of 137Ba. The second beta decay (β2) is to an excited state 137Ba∗. This excited state subsequently undergoes gamma decay to the ground state. In beta decay, the maximum possible energy of the emitted beta particle is equal to the difference in energy between the initial and final states of the nucleus. The...