investigate the $\beta$-decay of $^{22}Al$. One aim of these calculations was to determine the branching ratios to the different states in $^{22}Mg$. Different calculations already exist for this isotope [@blank; @brown]. We have performed new calculations with an isospin non-conserving interaction. No significant difference has been observed compared to an isospin-conserving calculation.

These calculations were also performed for the following reason. To construct an experimental decay scheme, we have to interpret the different experimental decay peaks in terms of their absolute energy position as states in $^{22}Mg$. This procedure is subject to uncertainties, because we deal with a large number of peaks and a huge number of states and transitions. It is obvious that errors in the interpretation can result in an apparent change of the Gamow-Teller strength. To avoid this problem, we have determined the different branching ratios for the emission of $\gamma$ rays, protons and sequential two protons from $^{22}Mg$ states. Brown [@brown] has already done this type of calculations in the case of $^{22}Al$ for the particle emission from one unique state, the IAS in $^{22}Mg$. For the first time, we have calculated these branching ratios for all interesting states in $^{22}Mg$, from the ground state to 