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Title:
Electromagnetic launchers
Authors:
Kolm, H.; Mongeau, P.; Williams, F.
Affiliation:
AA(MIT, Cambridge, Mass), AB(MIT, Cambridge, Mass), AC(MIT, Cambridge, Mass)
Publication:
Institute of Electrical and Electronics Engineers, International Magnetics Conference, 18th, Boston, Mass., Apr. 21-24, 1980. IEEE Transactions on Magnetics, vol. MAG-16, Sept. 1980, p. 719-721.
Publication Date:
09/1980
Category:
Engineering (General)
Origin:
STI
NASA/STI Keywords:
Chemical Propulsion, Electromagnetic Propulsion, Hypervelocity Guns, Missile Launchers, Space Transportation System, Cargo Ships, Direct Current, Electrochemical Machining, Electromagnets, Hypervelocity Launchers
DOI:
10.1109/TMAG.1980.1060806
Bibliographic Code:
1980ITM....16..719K

Abstract

Recent advances in energy storage, switching and magnet technology make electromagnetic acceleration a viable alternative to chemical propulsion for certain tasks, and a means to perform other tasks not previously feasible. Applications include the acceleration of gram-size particles for hypervelocity research and the initiation of fusion by impact, a replacement for chemically propelled artillery, the transportation of cargo and personnel over inaccessible terrain, and the launching of space vehicles to supply massive space operations, and for the disposal of nuclear waste. The simplest launcher of interest is the railgun, in which a short-circuit slide or an arc is driven along two rails by direct current. The most sophisticated studied thus far is the mass driver, in which a superconducting shuttle bucket is accelerated by a line of pulse coils energized by capacitors at energy conversion efficiencies better than 90%. Other accelerators of interest include helical, brush-commutated motors, discrete coil arc commutated drivers, flux compression momentum transformers, and various hybrid electrochemical devices.
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