Propagation of power pulses in magnetically insulated vacuum transmission lines
- 1 May 1979
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (5), 3713-3720
- https://doi.org/10.1063/1.326277
Abstract
The propagation of a 1.8‐MV 80‐kA power pulse in a 10‐m‐long 41.6‐Ω impedance coaxial vacuum transmission line has been investigated experimentally. The onset of magnetic insulation has been correlated to attainment of the critical current. Measurements of boundary (cathode) current suggest that 50–60% of the current flows in space charge in the axial direction between the conductors. The pulse sharpens as it propagates and attains a stationary shape. Pulse rise times of 4 ns were observed. Propagation velocities equal to 0.7c have been measured. Power and energy transports as high as 90 and 70% have been observed. The peak power density in the transmission line was 2×109 W cm−2.Keywords
This publication has 9 references indexed in Scilit:
- Space-charge effects in long coaxial vacuum transmission linesApplied Physics Letters, 1978
- Equivalent circuit approach to long magnetically insulated transmission linesJournal of Applied Physics, 1977
- One- and two-species equilibria for magnetic insulation in coaxial geometryPhysics of Fluids, 1977
- Magnetic cutoff in high-current diodesJournal of Applied Physics, 1977
- Ion-Beam Implosion of Fusion TargetsPhysical Review Letters, 1975
- Relativistic Brillouin flow in the high ν/γ diodeJournal of Applied Physics, 1975
- Theory of magnetic insulationPhysics of Fluids, 1974
- Plasma-induced field emission and the characteristics of high-current relativistic electron flowJournal of Applied Physics, 1974
- Equilibria for Magnetic InsulationIEEE Transactions on Plasma Science, 1973