Reasonable macro applications of antimatter and annihilation energies are possible if basic production and storage problems are solved. This paper, prepared for a recent antimatter propulsion workshop, discusses some propulsion applications in three major classes: those giving specific impulses of about 1000; those giving specific impulses in the 2000 to 20,000 range; and those giving very high specific impulses. The author concludes that schemes for using antimatter for propulsion are conceptually available.
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