NDLI: Hypervelocity macroparticle accelerator experiments at CEM-UT

Content Provider	IEEE Xplore Digital Library
Author	Weeks, D.A. Weldon, W.F. Zowarka Jr., R.C.
Copyright Year	1965
Abstract	Several railgun experiments designed to accelerate projectile masses of 2 to 5 g to velocities greater than 6 km/s were performed. Two parallel rail-type accelerators with 12.7 mm square bores were used for the experiments. One gun is 2 m long, has molybdenum rails and alumina ceramic insulators. The other is 1 m long, has molybdenum rails and granite insulators. The greatest velocity achieved to date during the experiments was 5.1 km/s. During the test program, the following ideas to enhance launcher performance were tested: stiff-gun structures to reduce plasma leakage and rail movement, refactory bore materials to reduce ablation and frictional losses, and prefilling the gun bore with gases which will eliminate precursor arcs. After three experiments utilizing the 2 m long launcher, with peak currents ranging from 660 to 780 kA, a gun barrel comprised of 96% pure alumina ceramic insulators and 99.9% pure molybdenum rails has survived with minimal damage and no degradation of seals.<>
Sponsorship	IEEE Magnetics Society
Starting Page	85
Ending Page	90
Page Count	6
File Size	592810
File Format	PDF
ISSN	00189464
Volume Number	27
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rails Boring Insulation Ceramics Materials testing Railguns Acceleration Projectiles Performance loss Plasma materials processing
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Operating experience with the 90 mm railgun at CEM-UT

Small bore railgun activities at KSL

Residual plasma property control for hypervelocity railgun performance

Structural response of a railgun accelerator

Limiting physics effects in hypervelocity railguns

The Culham Laboratory hypervelocity test facility

Testing of a high performance, precision-bore railgun

Distributed energy store powered railguns for hypervelocity launch

Performance loss due to electrical breakdown of pre-accelerator gas

Hypervelocity macroparticle accelerator experiments at CEM-UT

Similar Documents

Operating experience with the 90 mm railgun at CEM-UT

Small bore railgun activities at KSL

Residual plasma property control for hypervelocity railgun performance

Structural response of a railgun accelerator

Limiting physics effects in hypervelocity railguns

The Culham Laboratory hypervelocity test facility

Testing of a high performance, precision-bore railgun

Distributed energy store powered railguns for hypervelocity launch

Performance loss due to electrical breakdown of pre-accelerator gas

Hypervelocity macroparticle accelerator experiments at CEM-UT