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Title: Effects of local plasma formation with energy concentration in magnetically insulated transmission lines

Abstract

In experiments on compression of a light liner in the module A5-1 facility energy is transmitted from the generator with an internal impedance of {rho} = 0.04 {Omega} to the load using a three-dimensional concentrator with a total inductance of L {approximately} 1 nH consisting of parallel magnetically insulated vacuum lines connected at the midpoint. Current was transported to the inductive load with an efficiency greater than 70%, while the measured electron leakage current was less than 0.5 MA. The measurements showed that the main losses occur in the region where the lines are joined. The losses in the concentrator could not be explained using the theory of magnetic self-insulation. In model experiments carried in the MSM device (U = 100-200 kV, {rho}{sub g} = 2 {Omega}, {tau} = 90 ns) to study the efficiency of energy transport along slab transmission lines to an inductive load with parameters close to those of the concentrator lines, it was found that for I > I{sub min} the losses are associated with local plasma flows representing a fast plasma component (V > 10{sup 7} cm/s), which are able to close the interelectrode gap. Optimization of the concentrator geometry yielded a current of Imore » = 4.6 MA in the inductive load, close to the calculated value, for a potential in the incident wave of the generator forming line equal to U = 1.2 MV. 18 refs., 8 figs.« less

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
416238
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 19; Journal Issue: 9; Other Information: PBD: Sep 1993; TN: Translated from Fiz. Plazmy; 19, 1101-1109(Sep 1993)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; PLASMA; LINERS; TARGETS; POWER TRANSMISSION; ANGARA-5 DEVICE; PARTICLE BEAM FUSION ACCELERATOR; ION BEAMS; LIGHT IONS

Citation Formats

Gordeev, E M, Zazhivikhin, V V, Korolev, V D, Liksonov, V I, Tulupov, M V, and Chernenko, A S. Effects of local plasma formation with energy concentration in magnetically insulated transmission lines. United States: N. p., 1993. Web.
Gordeev, E M, Zazhivikhin, V V, Korolev, V D, Liksonov, V I, Tulupov, M V, & Chernenko, A S. Effects of local plasma formation with energy concentration in magnetically insulated transmission lines. United States.
Gordeev, E M, Zazhivikhin, V V, Korolev, V D, Liksonov, V I, Tulupov, M V, and Chernenko, A S. 1993. "Effects of local plasma formation with energy concentration in magnetically insulated transmission lines". United States.
@article{osti_416238,
title = {Effects of local plasma formation with energy concentration in magnetically insulated transmission lines},
author = {Gordeev, E M and Zazhivikhin, V V and Korolev, V D and Liksonov, V I and Tulupov, M V and Chernenko, A S},
abstractNote = {In experiments on compression of a light liner in the module A5-1 facility energy is transmitted from the generator with an internal impedance of {rho} = 0.04 {Omega} to the load using a three-dimensional concentrator with a total inductance of L {approximately} 1 nH consisting of parallel magnetically insulated vacuum lines connected at the midpoint. Current was transported to the inductive load with an efficiency greater than 70%, while the measured electron leakage current was less than 0.5 MA. The measurements showed that the main losses occur in the region where the lines are joined. The losses in the concentrator could not be explained using the theory of magnetic self-insulation. In model experiments carried in the MSM device (U = 100-200 kV, {rho}{sub g} = 2 {Omega}, {tau} = 90 ns) to study the efficiency of energy transport along slab transmission lines to an inductive load with parameters close to those of the concentrator lines, it was found that for I > I{sub min} the losses are associated with local plasma flows representing a fast plasma component (V > 10{sup 7} cm/s), which are able to close the interelectrode gap. Optimization of the concentrator geometry yielded a current of I = 4.6 MA in the inductive load, close to the calculated value, for a potential in the incident wave of the generator forming line equal to U = 1.2 MV. 18 refs., 8 figs.},
doi = {},
url = {https://www.osti.gov/biblio/416238}, journal = {Plasma Physics Reports},
number = 9,
volume = 19,
place = {United States},
year = {Wed Sep 01 00:00:00 EDT 1993},
month = {Wed Sep 01 00:00:00 EDT 1993}
}