An Exploration Perspective of Beamed Energy Propulsion

Details An Exploration Perspective of Beamed Energy Propulsion An Exploration Perspective of Beamed Energy Propulsion

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..997...26c&link_type=abstract

BEAMED ENERGY PROPULSION: Fifth International Symposium on Beamed Energy Propulsion. AIP Conference Proceedings, Volume 997, pp

Computer Science

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Spaceborne And Space Research Instruments, Apparatus, And Components, Laser-Driven Acceleration, Direct Energy Conversion And Storage, Magnetohydrodynamic Conversion

Scientific paper

The Vision for Exploration is currently focused on flying the Space Shuttle safely to complete our Space Station obligations, retiring the Shuttle in 2010, then returning humans to the Moon and learning how to proceed to Mars and beyond. The NASA budget still includes funds for science and aeronautics but the primary focus is on human exploration. Fiscal constraints have led to pursuing exploration vehicles that use heritage hardware, particularly existing boosters and engines, with the minimum modifications necessary to satisfy mission requirements. So, pursuit of immature technologies is not currently affordable by NASA. Beamed energy is one example of an immature technology, from a human exploration perspective, that may eventually provide significant benefits for human exploration of space, but likely not in the near future. Looking to the more distant future, this paper will examine some of the criteria that must be achieved by beamed energy propulsion to eventually contribute to human exploration of the solar system. The analysis focuses on some of the implications of increasing the payload fraction of a launch vehicle, with a quick look at trans-lunar injection. As one would expect, there is potential for benefit, and there are concerns. The analysis concludes with an assessment of the Technology Readiness Level (TRL) for some beamed energy propulsion components, indicating that TRL 2 is close to being completed.

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