Development of a Time-resolved Soft X-ray Spectrometer for Laser Produced Plasma Experiments

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A 2400 line/mm variable spaced grating spectrometer (VSG) has been used to measure soft x-ray emission (8-22 {angstrom}) from laser-produced plasma experiments at Lawrence Livermore National Laboratory's Compact Multipulse Terrawatt (COMET) Laser Facility. The spectrometer was coupled to a Kentech x-ray streak camera to study the temporal evolution of soft x-rays emitted from the back of mylar and copper foils irradiated at 10{sup 15} W/cm{sup 2}. The instrument demonstrated a resolving power of {approx} 120 at 19 {angstrom} with a time resolution of 31 ps. The time-resolved copper emission spectrum was consistent with a photodiode monitoring the laser temporal pulse ... continued below

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Cone, K. V.; Dunn, J.; Schneider, M. B.; Baldis, H. A.; Brown, G. V.; Emig, J. et al. May 12, 2010.

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A 2400 line/mm variable spaced grating spectrometer (VSG) has been used to measure soft x-ray emission (8-22 {angstrom}) from laser-produced plasma experiments at Lawrence Livermore National Laboratory's Compact Multipulse Terrawatt (COMET) Laser Facility. The spectrometer was coupled to a Kentech x-ray streak camera to study the temporal evolution of soft x-rays emitted from the back of mylar and copper foils irradiated at 10{sup 15} W/cm{sup 2}. The instrument demonstrated a resolving power of {approx} 120 at 19 {angstrom} with a time resolution of 31 ps. The time-resolved copper emission spectrum was consistent with a photodiode monitoring the laser temporal pulse shape and indicated that the soft x-ray emission follows the laser heating of the target. The time and spectral resolution of this diagnostic make it useful for studies of high temperature plasmas.

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  • Presented at: High Temperature Plasma Diagnostics 2010, Wildwood, NJ, United States, May 16 - May 20, 2010

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  • Report No.: LLNL-CONF-431867
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1009648
  • Archival Resource Key: ark:/67531/metadc843592

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  • May 12, 2010

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 5, 2016, 2:10 p.m.

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Cone, K. V.; Dunn, J.; Schneider, M. B.; Baldis, H. A.; Brown, G. V.; Emig, J. et al. Development of a Time-resolved Soft X-ray Spectrometer for Laser Produced Plasma Experiments, article, May 12, 2010; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc843592/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.