We consider the double scaling limit for a model of $n$ non-intersecting
squared Bessel processes in the confluent case: all paths start at time $t=0$
at the same positive value $x=a$, remain positive, and are conditioned to end
at time $t=1$ at $x=0$. After appropriate rescaling, the paths fill a region in
the $tx$--plane as $n\to \infty$ that intersects the hard edge at $x=0$ at a
critical time $t=t^{*}$.