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Title: New self-magnetically insulated connection of multilevel accelerators to a common load

Abstract

A new way to connect pulsed-power modules to a common load is presented. Unlike previous connectors, the clam shell magnetically insulated transmission line (CSMITL) has magnetic nulls only at large radius where the cathode electric field is kept below the threshold for emission, has only a simply connected magnetic topology to avoid plasma motion along magnetic field lines into highly stressed gaps, and has electron injectors that ensure efficient electron flow even in the limiting case of self-limited MITLs. Multilevel magnetically insulated transmission lines with a posthole convolute are the standard solution but associated losses limit the performance of state-of-the-art accelerators. Mitigating these losses is critical for the next generation of pulsed-power accelerators. A CSMITL has been successfully implemented on the Saturn accelerator. A reference design for the Z accelerator is derived and presented. The design conservatively meets the design requirements and shows excellent transport efficiency in three simulations of increasing complexity: circuit simulations, electromagnetic fields only with Emphasis, fields plus electron and ion emission with Quicksilver.

Authors:
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States); VanDevender Enterprises, Albuquerque, NM (United States)
  2. Sandia National Labs., Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1181509
Alternate Identifier(s):
OSTI ID: 1214812
Grant/Contract Number:
AC04-94AL85000
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review Special Topics. Accelerators and Beams
Additional Journal Information:
Journal Volume: 18; Journal Issue: 3; Journal ID: ISSN 1098-4402
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

VanDevender, J. Pace, Langston, William L., Pasik, Michael F., Coats, Rebecca S., Pointon, Timothy D., Seidel, David B., McKee, G. Randal, and Schneider, Larry X. New self-magnetically insulated connection of multilevel accelerators to a common load. United States: N. p., 2015. Web. doi:10.1103/PhysRevSTAB.18.030403.
VanDevender, J. Pace, Langston, William L., Pasik, Michael F., Coats, Rebecca S., Pointon, Timothy D., Seidel, David B., McKee, G. Randal, & Schneider, Larry X. New self-magnetically insulated connection of multilevel accelerators to a common load. United States. doi:10.1103/PhysRevSTAB.18.030403.
VanDevender, J. Pace, Langston, William L., Pasik, Michael F., Coats, Rebecca S., Pointon, Timothy D., Seidel, David B., McKee, G. Randal, and Schneider, Larry X. Wed . "New self-magnetically insulated connection of multilevel accelerators to a common load". United States. doi:10.1103/PhysRevSTAB.18.030403.
@article{osti_1181509,
title = {New self-magnetically insulated connection of multilevel accelerators to a common load},
author = {VanDevender, J. Pace and Langston, William L. and Pasik, Michael F. and Coats, Rebecca S. and Pointon, Timothy D. and Seidel, David B. and McKee, G. Randal and Schneider, Larry X.},
abstractNote = {A new way to connect pulsed-power modules to a common load is presented. Unlike previous connectors, the clam shell magnetically insulated transmission line (CSMITL) has magnetic nulls only at large radius where the cathode electric field is kept below the threshold for emission, has only a simply connected magnetic topology to avoid plasma motion along magnetic field lines into highly stressed gaps, and has electron injectors that ensure efficient electron flow even in the limiting case of self-limited MITLs. Multilevel magnetically insulated transmission lines with a posthole convolute are the standard solution but associated losses limit the performance of state-of-the-art accelerators. Mitigating these losses is critical for the next generation of pulsed-power accelerators. A CSMITL has been successfully implemented on the Saturn accelerator. A reference design for the Z accelerator is derived and presented. The design conservatively meets the design requirements and shows excellent transport efficiency in three simulations of increasing complexity: circuit simulations, electromagnetic fields only with Emphasis, fields plus electron and ion emission with Quicksilver.},
doi = {10.1103/PhysRevSTAB.18.030403},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 3,
volume = 18,
place = {United States},
year = {Wed Mar 04 00:00:00 EST 2015},
month = {Wed Mar 04 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevSTAB.18.030403

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