A propulsion system with capabilities that far exceed conventional and nuclear thermal system is proposed for human exploration of the solar system and beyond. It makes use of fusion nuclear reactions, and Is based on the magnetic mirror configuration Which was studied extensively as a potential Terrestrial power reactor. Unlike the Conventional mirror machine, however, the Proposed device will confine a plasma of Such density and temperature as to make the Ion-ion collision mean free path much shorter Than the plasma length. Under these Conditions the plasma behaves like a fluid and Its escape from the machine is analogous to The flow of a gas into vacuum from a vessel With a hole, hence the name gasdynamic Mirro (GDM) (See Fig. 1)
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