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Branching ratio and partial activity

A_i = 325.6 MBq

Ai=A⋅BRi⋅ni,Γair∝∑iBRiEiA_i = A\cdot BR_i\cdot n_i,\quad \Gamma_{\mathrm{air}}\propto \sum_i BR_i E_i

Partial emission rate A_i = A × BR_i × n_i for photons, β or α of a given branch.

Laser