Design and experimental results on a terawatt magnetically controlled plasma opening switch

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Description

The magnetically controlled plasma opening switch (MCPOS) is an advanced plasma opening switch that utilizes magnetic fields to improve operation. Magnetic fields always dominate terawatt, pulsed power plasma opening switches. For that reason, the MCPOS uses controlled applied magnetic fields with magnitude comparable to the self-magnetic field of the storage inductor. One applied field holds the plasma in place while energy accumulates in the storage inductor, then another applied field pushes the plasma away from the cathode to allow energy to flow downstream. Over a ten month period, an MCPOS was designed, built, and tested on DECADE Module 2 at ... continued below

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66 p.

Creation Information

Savage, M.E.; Simpson, W.W.; Mendel, C.W. Jr.; McDaniel, D.H.; Levine, J.S. & Tucker, T.S. May 1, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The magnetically controlled plasma opening switch (MCPOS) is an advanced plasma opening switch that utilizes magnetic fields to improve operation. Magnetic fields always dominate terawatt, pulsed power plasma opening switches. For that reason, the MCPOS uses controlled applied magnetic fields with magnitude comparable to the self-magnetic field of the storage inductor. One applied field holds the plasma in place while energy accumulates in the storage inductor, then another applied field pushes the plasma away from the cathode to allow energy to flow downstream. Over a ten month period, an MCPOS was designed, built, and tested on DECADE Module 2 at Physics International. The peak drive current was 1.8 MA in 250 ns. The output parameters were up to 1 MA into an electron beam load. The radiation temporal pulse width averaged 60 nanoseconds full-width at half-maximum. The peak load voltage ranged from one to two megavolts. The experiments demonstrated efficient power flow through a long, low-impedance magnetically insulated transmission line between the magnetically controlled plasma opening switch and the load.

Physical Description

66 p.

Notes

OSTI as DE98005450

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  • Other Information: PBD: May 1998

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  • Other: DE98005450
  • Report No.: SAND--98-0704
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/658401 | External Link
  • Office of Scientific & Technical Information Report Number: 658401
  • Archival Resource Key: ark:/67531/metadc702813

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  • May 1, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 14, 2016, 8:23 p.m.

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Savage, M.E.; Simpson, W.W.; Mendel, C.W. Jr.; McDaniel, D.H.; Levine, J.S. & Tucker, T.S. Design and experimental results on a terawatt magnetically controlled plasma opening switch, report, May 1, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc702813/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.