The role of Z-pinches and related configurations in magnetized target fusion

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The use of a magnetic field within a fusion target is now known as Magnetized Target Fusion in the US and as MAGO (Magnitnoye Obzhatiye, or magnetic compression) in Russia. In contrast to direct, hydrodynamic compression of initially ambient-temperature fuel (e.g., ICF), MTF involves two steps: (a) formation of a warm, magnetized, wall-confined plasma of intermediate density within a fusion target prior to implosion; (b) subsequent quasi-adiabatic compression and heating of the plasma by imploding the confining wall, or pusher. In many ways, MTF can be considered a marriage between the more mature MFE and ICF approaches, and this marriage ... continued below

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6 p.

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Lindemuth, I.R. July 10, 1997.

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Description

The use of a magnetic field within a fusion target is now known as Magnetized Target Fusion in the US and as MAGO (Magnitnoye Obzhatiye, or magnetic compression) in Russia. In contrast to direct, hydrodynamic compression of initially ambient-temperature fuel (e.g., ICF), MTF involves two steps: (a) formation of a warm, magnetized, wall-confined plasma of intermediate density within a fusion target prior to implosion; (b) subsequent quasi-adiabatic compression and heating of the plasma by imploding the confining wall, or pusher. In many ways, MTF can be considered a marriage between the more mature MFE and ICF approaches, and this marriage potentially eliminates some of the hurdles encountered in the other approaches. When compared to ICF, MTF requires lower implosion velocity, lower initial density, significantly lower radial convergence, and larger targets, all of which lead to substantially reduced driver intensity, power, and symmetry requirements. When compared to MFE, MTF does not require a vacuum separating the plasma from the wall, and, in fact, complete magnetic confinement, even if possible, may not be desirable. The higher density of MTF and much shorter confinement times should make magnetized plasma formation a much less difficult step than in MFE. The substantially lower driver requirements and implosion velocity of MTF make z-pinch magnetically driven liners, magnetically imploded by existing modern pulsed power electrical current sources, a leading candidate for the target pusher of an MTF system.

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6 p.

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INIS; OSTI as DE98000837

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  • 4. international conference on dense Z-pinches, Vancouver (Canada), 28-31 May 1997

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  • Other: DE98000837
  • Report No.: LA-UR--97-2723
  • Report No.: CONF-9705120--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 541944
  • Archival Resource Key: ark:/67531/metadc691673

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  • July 10, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • March 1, 2016, 6:31 p.m.

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Lindemuth, I.R. The role of Z-pinches and related configurations in magnetized target fusion, article, July 10, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc691673/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.