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High Energy, Nuclear, Particle Physics
Understanding Decay Schemes: A Guide to Interpreting Energy Levels and Symbols
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[QUOTE="gleem, post: 6074232, member: 298988"] Starting from left to right..The percentage under the I131 are the percentage of the beta decays that lead to the various energy levels of the daughter . The next number is the Log of the comparative half lives for the decays to the various levels. The comparative half live is proportional to the decay constant for that transition. The next number with the +/- signs are the spin and parity of the Xe131 states. The numbers above the energy levels in Xe131 are the percent of total gamma decay for that transition, the next above is the energy of the gamma ray for that transition, and the M1, E2, M4 refer to the type of electromagnetic transitions, magnetic dipole, electric quadrapole and magenetic octopole respectively. The numbers to the right of the Xe131 energy levels are the energies and half lives of those states. The Q[SUB]β-[/SUB] is he Q-value of the decay, the excess energy of the decay available to the beta particles as kinetic energy. Edit: The M4 term should have been hexadecapole not octopole. [/QUOTE]
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High Energy, Nuclear, Particle Physics
Understanding Decay Schemes: A Guide to Interpreting Energy Levels and Symbols
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