Design of a distributed radiator target for inertial fusion driven from two sides with heavy ion beams

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We describe the status of a distributed radiator heavy ion target design. In integrated calculations this target ignited and produced 390-430 MJ of yieldwhen driven with 5.8-6.5 MJ of 3-4 GeV Pb ions. The target has cylindrical symmetry with disk endplates. The ions uniformly illuminate these endplates in a 5mm radius spot. We discuss the considerations which led to this design together with some previously unused design features: low density hohlraum walls in approximate pressure balance with internal low-Z fill materials, radiationsymmetry determined by the position of the radiator materials and particle ranges, and early time pressure symmetry possibly influenced ... continued below

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35 p.; Other: FDE: PDF; PL:

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Tabak, M. & Callahan-Miller, D. November 10, 1997.

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Description

We describe the status of a distributed radiator heavy ion target design. In integrated calculations this target ignited and produced 390-430 MJ of yieldwhen driven with 5.8-6.5 MJ of 3-4 GeV Pb ions. The target has cylindrical symmetry with disk endplates. The ions uniformly illuminate these endplates in a 5mm radius spot. We discuss the considerations which led to this design together with some previously unused design features: low density hohlraum walls in approximate pressure balance with internal low-Z fill materials, radiationsymmetry determined by the position of the radiator materials and particle ranges, and early time pressure symmetry possibly influenced by radiation shims. We discuss how this target scales to lower input energy or to lower beam power. Variant designs with more realistic beam focusing strategies are also discussed. We show the tradeoffs required for targets which accept higher particle energies.

Physical Description

35 p.; Other: FDE: PDF; PL:

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INIS; OSTI as DE98052171

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  • 39. annual meeting of the Division of Plasma Physics of the American Physical Society, Pittsburgh, PA (United States), 17-21 Nov 1997

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  • Other: DE98052171
  • Report No.: UCRL-JC--128366-Rev.2
  • Report No.: CONF-971103--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 668377
  • Archival Resource Key: ark:/67531/metadc710598

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Office of Scientific & Technical Information Technical Reports

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  • November 10, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 18, 2016, 12:21 p.m.

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Tabak, M. & Callahan-Miller, D. Design of a distributed radiator target for inertial fusion driven from two sides with heavy ion beams, article, November 10, 1997; California. (digital.library.unt.edu/ark:/67531/metadc710598/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.