Abstract

The nuclear lightbulb (NLB) rocket propulsion concept furnishes specific impulse above 2000 sec in conjunction with the greater-than-50,000 lb thrust levels required for rapid transit-time round-trip Mars missions requiring low initial mass in earth orbit. The NLB transfers energy from the gaseous nuclear fuel region to a hydrogen propellant via thermal radiation, thereby precluding material temperature constraints. An evaluation is presently made of technology and test method readiness for implementation and validation of this propulsion system concept. 13 refs.

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