Status of magnetically-insulated power transmission theory Page: 4 of 6
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$ is to the right of the forward wave line, and
6 mde (sed) the front is never insulated. Thus, if a device,
6 "'for instance a vacuum-matched ten feed-line
5 ladder, tries to make the flow impedance less
than half the vacuum impedance, electrons will
2 - be lost at the adder until the flow impedance
V,. is half the vacuum impedance. Thus the
0 ,importance of using the optimum adder design.
0.0 0.5 1.0 1.5 2.0 Conclusions: The theory of
z (m) magnetically-insulated electron flow in
transmission lines is well understood, and
Figure 4a. V, at the time of Fig. 3. models are now adequate for confident use for
data analysis and system design.
Acknowledgements: The author would like to thank S. E. Rosenthal for providing simulation data, and S. E.
Rosenthal and D. B. Seidel for comments on this manuscript.
This work was supported by the United States Department of Energy under contract DE-AC04-94AL85000.
1.0 model (solid)
0.8 simulation (dashed)
emission only -
0.6 anode begin insulation ' e
- 0.4 - 2 2 -
cathode > loss front
S1 i ;' :o '
0.0 , -
0.0 0.5 1.0 1.5 2.0 7.% insulation limit
z(m) o
0 1 2 3 4 5
cA (MV)
Figure 4b. Current at the anode and cathode at the Figure 5. A step-forward wave in the A,V plane.
same time as Fig. 3. When A,V is above the insulation line electrons can
cross from cathode to anode.
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Mendel, C.W. Jr. Status of magnetically-insulated power transmission theory, article, December 31, 1995; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc665543/m1/4/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.