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U.S. Department of Energy
Office of Scientific and Technical Information

Multiple stage railgun

Patent ·
OSTI ID:6521295

A multiple stage magnetic railgun accelerator for accelerating a projectile by movement of a plasma arc along the rails. The railgun is divided into a plurality of successive rail stages which are sequentially energized by separate energy sources as the projectile moves through the bore of the railgun. Propagation of energy from an energized rail stage back towards the breech end of the railgun can be prevented by connection of the energy sources to the rails through isolation diodes. Propagation of energy from an energized rail stage back towards the breech end of the railgun can also be prevented by dividing the rails into electrically isolated rail sections. In such case means are used to extinguish the arc at the end of each energized stage and a fuse or laser device is used to initiate a new plasma arc in the next energized rail stage.

Assignee:
Dept. of Energy
Patent Number(s):
US 4343223
OSTI ID:
6521295
Country of Publication:
United States
Language:
English