Email RIS file
Bookmark
Report an Issue

Pulsed laser propulsion for low cost, high volume launch to orbit [electronic resource].

Published
Livermore, Calif : Lawrence Livermore National Laboratory, 1989.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 6 : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Pulsed laser propulsion offers the prospect of delivering high thrust at high specific impulse (500-1000 seconds) from a very simple thruster, using the energy of a remote ground-based laser to heat an inert propellant. Current analyses indicate that payloads of approximately 1 kg per megawatt of average laser power can be launched at a rate of one payload every 15 minutes and a marginal cost of $20 to $200 per kg. A 20 MW entry-level launch system could be built using current technology at a cost of $500 million or less; it would be capable of placing 600 tons per year into LEO. The SDIO Laser Propulsion Program has been developing the technology for such a launch system since 1987. The program has conducted theoretical and experimental research on a particular class of laser-driven thruster, the planar double-pulse LSD-wave thruster, which could be used for a near-term launcher. The double-pulse thruster offers several advantages, including extreme simplicity, design flexibility, and the ability to guide a vehicle remotely by precise control of the laser beam. Small-scale experiments have demonstrated the operation of this thruster at a specific impulse of 600 seconds and 10% efficiency; larger experiments now under way are expected to increase this to at least 20% efficiency. Systems-level issues, from guidance and tracking to possible unique applications, have also been considered and will be briefly discussed. There appear to be no fundamental obstacles to creating, in the next five to ten years, a new low-cost ''pipe-line to space.'' 7 refs., 2 figs., 1 tab.
Report Numbers
E 1.99:ucrl-101139
E 1.99: conf-8906169-1
conf-8906169-1
ucrl-101139
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
06/02/1989.
"ucrl-101139"
" conf-8906169-1"
"DE89014049"
International Astronautics Federation conference on space power, Cleveland, OH, USA, 5-7 Jun 1989.
Kare, J.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14079728