O-d energetics scaling models for Z-pinch-driven hohlraums

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Wire array Z-pinches on the Z accelerator provide the most intense laboratory source of soft x-rays in the world. The unique combination of a highly-Planckian radiation source with high x-ray production efficiency (15% wall plug), large x-ray powers and energies ( >150 TW, {ge}1 MJ in 7 ns), large characteristic hohlraum volumes (0.5 to >10 cm{sup 3}), and long pulse-lengths (5 to 20 ns) may make Z-pinches a good match to the requirements for driving high-yield scale ICF capsules with adequate radiation symmetry and margin. The Z-pinch driven hohlraum approach of Hammer and Porter [Phys.Plasmas, 6, 2129(1999)] may provide a ... continued below

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47 p.

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CUNEO,MICHAEL E.; VESEY,ROGER A.; HAMMER,J.H. & PORTER,JOHN L. June 8, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Wire array Z-pinches on the Z accelerator provide the most intense laboratory source of soft x-rays in the world. The unique combination of a highly-Planckian radiation source with high x-ray production efficiency (15% wall plug), large x-ray powers and energies ( >150 TW, {ge}1 MJ in 7 ns), large characteristic hohlraum volumes (0.5 to >10 cm{sup 3}), and long pulse-lengths (5 to 20 ns) may make Z-pinches a good match to the requirements for driving high-yield scale ICF capsules with adequate radiation symmetry and margin. The Z-pinch driven hohlraum approach of Hammer and Porter [Phys.Plasmas, 6, 2129(1999)] may provide a conservative and robust solution to the requirements for high yield, and is currently being studied on the Z accelerator. This paper describes a multiple region, 0-d hohlraum energetic model for Z-pinch driven hohlraums in four configurations. The authors observe consistency between the models and the measured x-ray powers and hohlraum wall temperatures to within {+-}20% in flux, for the four configurations.

Physical Description

47 p.

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INIS; OSTI as DE00756441

Medium: P; Size: 47 pages

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  • Journal Name: Lasers and Particle Beams; Other Information: Submitted to Lasers and Particle Beams

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  • Report No.: SAND2000-1450J
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 756441
  • Archival Resource Key: ark:/67531/metadc709536

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  • June 8, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 12, 2017, 6:54 p.m.

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CUNEO,MICHAEL E.; VESEY,ROGER A.; HAMMER,J.H. & PORTER,JOHN L. O-d energetics scaling models for Z-pinch-driven hohlraums, article, June 8, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc709536/: accessed August 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.