  The single $\beta$ decay of $^{96}$Zr to the ground state of $^{96}$Nb is
spin forbidden and poses a great experimental challenge. The $\beta$ decay of
$^{96}$Zr can be studied via coincident detection of de-exciting gamma rays in
$^{96}$Mo, which is the end product of $^{96}$Nb $\beta$ decay. Simulations are
done with four HPGe detector setup (~33% relative efficiency each) to optimize
the source configuration. The results suggest that ~70g of 50% enriched
$^{96}$Zr will yield sensitivity comparable to the reported results.
