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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wetz, D. Stefani, F. Motes, D. Parker, J. McNab, I. |
| Copyright Year | 2007 |
| Description | Author affiliation: Texas Univ., Austin (Wetz, D.; Stefani, F.; Motes, D.; Parker, J.; McNab, I.) |
| Abstract | Summary form only given. Research in the area of plasma armature railguns is currently underway at the Institute for Advanced Technology (IAT) as part of an Air Force MURI. The program is aimed at investigating the possible use of an electromagnetic launcher for the rapid and affordable launch of microsatellites (~1 to 10 kg) into low-earth orbit. In the experiment, the IAT is developing a plasma-driven railgun to launch low-mass projectiles of roughly 7 g to a velocity in excess of 7 km/s. To accomplish this goal requires overcoming the problem of bore ablation, which has been linked to an observed velocity ceiling of about 6 km/s in plasma armature launchers. Bore ablation is a direct consequence of the intense heat radiated by plasma armatures. Controlling bore ablation requires a coordinated approach that includes: 1. using magnetic augmentation to reduce power dissipation in the plasma, 2. using high-purity alumina insulators to raise the ablation resistance of the bore, 3. using pre-acceleration to prevent ablation of the bore materials at low velocity, and 4. using a synchronously driven, distributed power supply to electrically isolate stages. This paper describes the consequences of excessive bore ablation, the rationale for the IAT experiment, and results obtained from the hardware that has been designed and tested so far. |
| Starting Page | 1015 |
| Ending Page | 1015 |
| File Size | 39085 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424409150 |
| ISSN | 07309244 |
| DOI | 10.1109/PPPS.2007.4346321 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-17 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Railguns Boring Space technology Plasma materials processing Electromagnetic forces Electromagnetic launching Projectiles Power dissipation Insulation Electric resistance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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