Hot Electron Diagnostic in a Solid Laser Target by Buried K-Shell Fluorer Technique from Ultra-Intense (3x1020W/cm2,< 500 J) Laser-Plasma Interactions on the Petawatt Laser at LLNL

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Characterization of hot electron production (a conversion efficiency from laser energy into electrons) in ultra intense laser-solid target interaction, using 1.06 {micro}m laser light with an intensity of up to 3 x 10{sup 20}W cm{sup -2} and an on target laser energy of {le}500 J, has been done by observing K{sub {beta}} as well as K{sub {alpha}} emissions from a buried Mo layer in the targets, which are same structure as in the previous 100 TW experiments but done under less laser intensity and energy conditions ({le} 4 x 10{sup 19} Wcm{sup -2} and {le} 30 J). The conversion efficiency ... continued below

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2,290 Kilobytes pages

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Yasuike, K.; Key, M.H.; Hatchett, S.P. & Snavely, R.A. June 29, 2000.

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Characterization of hot electron production (a conversion efficiency from laser energy into electrons) in ultra intense laser-solid target interaction, using 1.06 {micro}m laser light with an intensity of up to 3 x 10{sup 20}W cm{sup -2} and an on target laser energy of {le}500 J, has been done by observing K{sub {beta}} as well as K{sub {alpha}} emissions from a buried Mo layer in the targets, which are same structure as in the previous 100 TW experiments but done under less laser intensity and energy conditions ({le} 4 x 10{sup 19} Wcm{sup -2} and {le} 30 J). The conversion efficiency from the laser energy into the energy, carried by hot electrons, has been estimated to be {approx}50%, which are little bit higher than the previous less laser energy ({approx} 20 J) experiments, yet the x-ray emission spectra from the target has change drastically, i.e., gamma flash.

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2,290 Kilobytes pages

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  • Other Information: PBD: 29 Jun 2000

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  • Report No.: UCRL-ID-139612
  • Grant Number: W-7405-Eng-48
  • DOI: 10.2172/802613 | External Link
  • Office of Scientific & Technical Information Report Number: 802613
  • Archival Resource Key: ark:/67531/metadc743079

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  • June 29, 2000

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 29, 2016, 7:38 p.m.

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Yasuike, K.; Key, M.H.; Hatchett, S.P. & Snavely, R.A. Hot Electron Diagnostic in a Solid Laser Target by Buried K-Shell Fluorer Technique from Ultra-Intense (3x1020W/cm2,< 500 J) Laser-Plasma Interactions on the Petawatt Laser at LLNL, report, June 29, 2000; California. (digital.library.unt.edu/ark:/67531/metadc743079/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.