The stability of the pusher during the implosion still remains an issue of possible concern.
In the ablative mode, the sensitivity for asymmetry is essentially higher than in the exploding pusher mode.
In this way, a large thrust at a high specific impulse would be imparted onto the pusher plate, and hence the spacecraft.
The pusher velocity is found equal to 60 km0s.
Finding this balance was clearly the result of repeated work, practice, and co-operation between pusher and pushed.
In the acceleration phase, by causing shell breakup and in the deceleration phase by degrading the fuel compression with pusher-fuel mixing.
The thin-shell target was imploded without mixing of pusher and fuel.
Acting as a pusher they produced planar shock waves in a gas behind the irradiated foil target.
