Progress in fast ignitor research with the Nova petawatt laser facility

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The physics of fast ignition is being studied using a petawatt laser facility at the Lawrence Livermore National Laboratory. Performance of the PW laser with deformable mirror wavefront control giving intensities up to 3x10{sup 20} Wcm{sup {minus}2} is described. Measurements of the efficiency of conversion of laser energy to relativistic electrons and of their energy spectrum and angular distribution including an observed narrow beam angle of {+-}15{degree}, are reported. Heating by the electrons to near 1keV in solid density CD{sub 2} is inferred from the thermo-nuclear neutron yield. Estimates suggest an optimized gain of 300x if the National Ignition Facility ... continued below

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Cowan, T E; Hammel , B A; Hatchett, S P; Henry, E A; Key, M H; Kilkenny, J D et al. November 10, 1998.

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The physics of fast ignition is being studied using a petawatt laser facility at the Lawrence Livermore National Laboratory. Performance of the PW laser with deformable mirror wavefront control giving intensities up to 3x10{sup 20} Wcm{sup {minus}2} is described. Measurements of the efficiency of conversion of laser energy to relativistic electrons and of their energy spectrum and angular distribution including an observed narrow beam angle of {+-}15{degree}, are reported. Heating by the electrons to near 1keV in solid density CD{sub 2} is inferred from the thermo-nuclear neutron yield. Estimates suggest an optimized gain of 300x if the National Ignition Facility were to be adapted for fast ignition.

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3.1 Megabytes pages

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  • 17th International Atomic Energy Agency Fusion Energy Conference, Yokohama (JP), 10/19/1998--10/24/1998

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  • Report No.: UCRL-JC-132178
  • Report No.: DP0210000
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14550
  • Archival Resource Key: ark:/67531/metadc622979

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  • November 10, 1998

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 2:55 p.m.

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Cowan, T E; Hammel , B A; Hatchett, S P; Henry, E A; Key, M H; Kilkenny, J D et al. Progress in fast ignitor research with the Nova petawatt laser facility, article, November 10, 1998; California. (digital.library.unt.edu/ark:/67531/metadc622979/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.