Low impedance z-pinch drivers without post-hole convolute current adders.

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Description

Present-day pulsed-power systems operating in the terawatt regime typically use post-hole convolute current adders to operate at sufficiently low impedance. These adders necessarily involve magnetic nulls that connect the positive and negative electrodes. The resultant loss of magnetic insulation results in electron losses in the vicinity of the nulls that can severely limit the efficiency of the delivery of the system's energy to a load. In this report, we describe an alternate transformer-based approach to obtaining low impedance. The transformer consists of coils whose windings are in parallel rather than in series, and does not suffer from the presence of ... continued below

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76 p.

Creation Information

Savage, Mark Edward; Seidel, David Bruce & Mendel, Clifford Will, Jr. September 1, 2009.

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Description

Present-day pulsed-power systems operating in the terawatt regime typically use post-hole convolute current adders to operate at sufficiently low impedance. These adders necessarily involve magnetic nulls that connect the positive and negative electrodes. The resultant loss of magnetic insulation results in electron losses in the vicinity of the nulls that can severely limit the efficiency of the delivery of the system's energy to a load. In this report, we describe an alternate transformer-based approach to obtaining low impedance. The transformer consists of coils whose windings are in parallel rather than in series, and does not suffer from the presence of magnetic nulls. By varying the pitch of the coils windings, the current multiplication ratio can be varied, leading to a more versatile driver. The coupling efficiency of the transformer, its behavior in the presence of electron flow, and its mechanical strength are issues that need to be addressed to evaluate the potential of transformer-based current multiplication as a viable alternative to conventional current adder technology.

Physical Description

76 p.

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  • Report No.: SAND2009-6133
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/993876 | External Link
  • Office of Scientific & Technical Information Report Number: 993876
  • Archival Resource Key: ark:/67531/metadc1015273

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Creation Date

  • September 1, 2009

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 24, 2017, 2:27 p.m.

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Savage, Mark Edward; Seidel, David Bruce & Mendel, Clifford Will, Jr. Low impedance z-pinch drivers without post-hole convolute current adders., report, September 1, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc1015273/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.