Multimegajoule Electromagnetic Implosion of Shaped Solid-Density Liners
| Autor: | D. W. Price, D. Dietz, J.D. Graham, E. A. Lopez, W. L. Baker, S. K. Coffey, R.E. Peterkin, J. S. Buff, J.H. Degnan, C.J. Clouse, N. F. Roderick, M. L. Alme, C. R. Sovinec, D. J. Hall, J.L. Holmes, P. J. Turchi, M. H. Frese, J.D. Beason, C. N. Boyer, S. W. Seiler |
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| Rok vydání: | 1995 |
| Předmět: |
Electromagnetic field
Materials science business.industry 020209 energy General Engineering Implosion 02 engineering and technology Conical surface Radius 01 natural sciences 010305 fluids & plasmas Optics Industrial radiography 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Cylinder Magnetohydrodynamics business Shiva Star |
| Zdroj: | Fusion Technology. 27:115-123 |
| ISSN: | 0748-1896 |
| Popis: | Electromagnetic implosions of shaped cylindrical aluminum liners that remain at solid density are discussed. The approximate liner parameters have an initial radius of 3 to 4 cm, are 4 cm in height, and are nearly 0.1 cm thick. The liners are driven by the Shiva Star 1300-{mu}f capacitor bank at an 84-kV charging voltage and an nearly 30-nH total initial inductance (including implosion load). The discharge current travels along the length of the liner and rises to 14 MA in nearly 8 {mu}s. The implosion time is nearly 12 {mu}s. Diagnostics include inductive current and capacitive voltage probes, magnetic probes, and radiography. Both right-circular cylinder and conical liner implosion data are displayed and discussed. Radiography indicates implosion behavior substantially consistent with two-dimensional magnetohydrodynamic calculations, which predict inner surface implosion velocities exceeding 20 km/s, and compressed density of two to three times solid density. Less growth of perturbations is evident for the conical liner (nearly 1% thickness tolerance) than for the right-circular cylindrical liner (nearly 3% thickness tolerance). 12 refs., 8 figs. |
| Databáze: | OpenAIRE |
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