ENERGY PARTITIONING, ENERGY COUPLING (EPEC) EXPERIMENTS AT THE NATIONAL IGNITION FACILITY

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The energy-partitioning, energy-coupling (EPEC) experiments at the National Ignition Facility (NIF) will simultaneously measure the coupling of energy into both ground shock and air-blast overpressure from a laser-driven target. The source target for the experiment is positioned at a known height above the ground-surface simulant and is heated by four beams from NIF. The resulting target energy density and specific energy are equal to those of a low-yield nuclear device. The ground-shock stress waves and atmospheric overpressure waveforms that result in our test system are hydrodynamically scaled analogs of seismic and air-blast phenomena caused by a nuclear weapon. In what ... continued below

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PDF-file: 36 pages; size: 4.8 Mbytes

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Fournier, K B; Brown, C G; May, M J; Dunlop, W H; Compton, S M; Kane, J O et al. January 5, 2012.

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Description

The energy-partitioning, energy-coupling (EPEC) experiments at the National Ignition Facility (NIF) will simultaneously measure the coupling of energy into both ground shock and air-blast overpressure from a laser-driven target. The source target for the experiment is positioned at a known height above the ground-surface simulant and is heated by four beams from NIF. The resulting target energy density and specific energy are equal to those of a low-yield nuclear device. The ground-shock stress waves and atmospheric overpressure waveforms that result in our test system are hydrodynamically scaled analogs of seismic and air-blast phenomena caused by a nuclear weapon. In what follows, we discuss the motivation for our investigation and briefly describe NIF. Then, we introduce the EPEC experiments, including diagnostics, in more detail.

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PDF-file: 36 pages; size: 4.8 Mbytes

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  • Report No.: LLNL-TR-523011
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/1034490 | External Link
  • Office of Scientific & Technical Information Report Number: 1034490
  • Archival Resource Key: ark:/67531/metadc837376

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  • January 5, 2012

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Dec. 8, 2016, 3:49 p.m.

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Fournier, K B; Brown, C G; May, M J; Dunlop, W H; Compton, S M; Kane, J O et al. ENERGY PARTITIONING, ENERGY COUPLING (EPEC) EXPERIMENTS AT THE NATIONAL IGNITION FACILITY, report, January 5, 2012; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc837376/: accessed May 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.