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Title: On the design of magnetically insulated transmission lines for z-pinch loads

Abstract

Many papers have been published on the theory of magnetic insulation and the use of Zflow analysis of magnetically insulated transmission lines (MITL’s). We describe herein a novel design process using the circuit code SCREAMER, for a real-world MITL for z-pinch loads based on the Zflow model of magnetic insulation. In particular, we design a 15-TW, 10-MA, 100 ns double-disk transmission lines using only circuit modeling tools and Zflow analysis of the MITL. Critical issues such as current loss to the anode during the setup of magnetic insulation and the transition from a non-emitting vacuum power feed to a MITL play a large role in the MITL design. This very rapid design process allows us for the first time to explore innovative MITL designs such as variable-impedance MITL’s that provide a significantly lower total inductance and improved energy delivery to the load. In conclusion the tedious process of modeling the final MITL design with highly resolved 2-D and 3-D electromagnetic particle-in-cell codes occurs as a validation step, not as part of the design process.

Authors:
 [1];  [1]
  1. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1502380
Report Number(s):
2018-162, 1476
Journal ID: ISSN 2468-2047; 2018-162, 1476, 2435
Grant/Contract Number:  
NA0001944
Resource Type:
Accepted Manuscript
Journal Name:
Matter and Radiation at Extremes
Additional Journal Information:
Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2468-2047
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Spielman, R. B., and Reisman, D. B. On the design of magnetically insulated transmission lines for z-pinch loads. United States: N. p., 2019. Web. doi:10.1063/1.5089765.
Spielman, R. B., & Reisman, D. B. On the design of magnetically insulated transmission lines for z-pinch loads. United States. doi:10.1063/1.5089765.
Spielman, R. B., and Reisman, D. B. Mon . "On the design of magnetically insulated transmission lines for z-pinch loads". United States. doi:10.1063/1.5089765. https://www.osti.gov/servlets/purl/1502380.
@article{osti_1502380,
title = {On the design of magnetically insulated transmission lines for z-pinch loads},
author = {Spielman, R. B. and Reisman, D. B.},
abstractNote = {Many papers have been published on the theory of magnetic insulation and the use of Zflow analysis of magnetically insulated transmission lines (MITL’s). We describe herein a novel design process using the circuit code SCREAMER, for a real-world MITL for z-pinch loads based on the Zflow model of magnetic insulation. In particular, we design a 15-TW, 10-MA, 100 ns double-disk transmission lines using only circuit modeling tools and Zflow analysis of the MITL. Critical issues such as current loss to the anode during the setup of magnetic insulation and the transition from a non-emitting vacuum power feed to a MITL play a large role in the MITL design. This very rapid design process allows us for the first time to explore innovative MITL designs such as variable-impedance MITL’s that provide a significantly lower total inductance and improved energy delivery to the load. In conclusion the tedious process of modeling the final MITL design with highly resolved 2-D and 3-D electromagnetic particle-in-cell codes occurs as a validation step, not as part of the design process.},
doi = {10.1063/1.5089765},
journal = {Matter and Radiation at Extremes},
number = 2,
volume = 4,
place = {United States},
year = {2019},
month = {3}
}

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