Muzzle shunt augmentation of conventional railguns

Augmentation is a well-known technique for reducing the armature current, and hence the armature power dissipation, in a plasma armature railgun. In spite of the advantages, no large augmented railguns have been built, primarily due to the mechanical and electrical complexity introduced by the extra...

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Veröffentlicht in:IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) 1991-01, Vol.27 (1), p.80-84
1. Verfasser: Parker, J.V.
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description Augmentation is a well-known technique for reducing the armature current, and hence the armature power dissipation, in a plasma armature railgun. In spite of the advantages, no large augmented railguns have been built, primarily due to the mechanical and electrical complexity introduced by the extra conductors required. It is possible to achieve some of the benefits of augmentation in a conventional railgun by diverting a fraction phi of the input current through a shunt path at the muzzle of the railgun. In particular, the relation between force and armature current is the same as that obtained in an n-turn, series-connected augmented railgun with n=1/(1- phi ). The price of this simplification is a reduction in electrical efficiency and some additional complexity in the external electrical system. Additions to the electrical system are required to establish the shunt current and to control its magnitude during projectile acceleration. The relationship between muzzle shunt augmentation and conventional series augmentation is developed, and various techniques for establishing and controlling the shunt current are illustrated with a practical example.< >
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identifier ISSN: 0018-9464
ispartof IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), 1991-01, Vol.27 (1), p.80-84
issn 0018-9464
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language eng
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source IEEE Electronic Library (IEL)
subjects 430100 - Particle Accelerators- Design, Development, & Operation
430300 - Particle Accelerators- Auxiliaries & Components
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700430 - Fusion Technology- Magnet Coils & Fields- (1992-)
ACCELERATORS
Boring
Circuits
Conductors
DISSIPATION FACTOR
DIVERTORS
ELECTRICAL PROPERTIES
Laboratories
Magnetic fields
PARTICLE ACCELERATORS
PHYSICAL PROPERTIES
Physics
PLASMA GUNS
Plasma materials processing
Power dissipation
RAILGUN ACCELERATORS
Railguns
Rails
title Muzzle shunt augmentation of conventional railguns
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