One THz. Beamed Energy - Mission Capabilities

Details One THz. Beamed Energy - Mission Capabilities One THz. Beamed Energy - Mission Capabilities

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..766..308j&link_type=abstract

BEAMED ENERGY PROPULSION: Third International Symposium on Beamed Energy Propulsion. AIP Conference Proceedings, Volume 766, pp

Computer Science

Spaceborne And Space Research Instruments, Apparatus, And Components, Masers, Gyrotrons

Scientific paper

Gyrotrons now used for nuclear fusion experiments are a possibile source for beamed energy electro-thermal propulsion. Water vapor absorption is likely to bar 1 THz. transmission through the atmosphere. A space-based source in low equatorial orbit offers beamed energy velocity increments for upper stage orbit insertion. Transfer orbits to geosynchronous and lunar destinations and escape velocities to Mars and Venus are considered. Rapid acceleration (1 g) at high specific impulse implies very high source power and mass. Altitudes for BEP source satellites are in 600 to 800 kilometer range, set by atmospheric drag and avoidance of van Allen belt. Earth oblateness plus lunar and solar tidal forces are important factors governing source orbit selection and maintenance.

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