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  • Received: Dec. 7, 2019

    Accepted: Mar. 10, 2020

    Posted: Jun. 9, 2020

    Published Online: Jun. 9, 2020

    The Author Email: Fabrizio Consoli (fabrizio.consoli@enea.it)

    DOI: 10.1017/hpl.2020.13

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    Fabrizio Consoli, Vladimir T. Tikhonchuk, Matthieu Bardon, Philip Bradford, David C. Carroll, Jakub Cikhardt, Mattia Cipriani, Robert J. Clarke, Thomas E. Cowan, Colin N. Danson, Riccardo De Angelis, Massimo De Marco, Jean-Luc Dubois, Bertrand Etchessahar, Alejandro Laso Garcia, David I. Hillier, Ales Honsa, Weiman Jiang, Viliam Kmetik, Josef Krása, Yutong Li, Frédéric Lubrano, Paul McKenna, Josefine Metzkes-Ng, Alexandre Poyé, Irene Prencipe, Piotr Ra̧czka, Roland A. Smith, Roman Vrana, Nigel C. Woolsey, Egle Zemaityte, Yihang Zhang, Zhe Zhang, Bernhard Zielbauer, David Neely. Laser produced electromagnetic pulses: generation, detection and mitigation[J]. High Power Laser Science and Engineering, 2020, 8(2): 02000e22

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  • Table 1. Values of different parameters calculated for the fundamental modes of Vulcan Petawatt chamber.

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    Table 1. Values of different parameters calculated for the fundamental modes of Vulcan Petawatt chamber.

    Mode$a$$b$$d$$\unicode[STIX]{x1D706}_{0}$$f_{0}$$C$$V$$E_{0}$$H_{x0}$$H_{z0}$
    E-field[m][m][m] [m][MHz][pF][kV][kV/m][A/m][A/m]
    E–W2.22.04.63.97 7611.214.3 7.2 8.2 17.1
    Vert.2.02.24.63.67 82 9.217.3 7.9 8.3 19.2
    N–S2.24.62.02.96 101 2.175.7 16.5 32.0 29.4
  • Table 2. Frequencies of the expected harmonics and detected spectral peaks in the Vulcan experiment. Superscript E-W or N-S indicates the mode axis and numbers 1, 2 and 3 indicate the harmonic order.

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    Table 2. Frequencies of the expected harmonics and detected spectral peaks in the Vulcan experiment. Superscript E-W or N-S indicates the mode axis and numbers 1, 2 and 3 indicate the harmonic order.

    ExpectedMeasured Frequencies (MHz)
    Frequencies EO Ch1 EO Ch2
    (MHz)(North–South)(East–West) D-dot
    $76^{\text{E-W1}}$$76\pm 4$Not detectedNot detected
    $101^{\text{N-S1}}$$102.7\pm 0.6$$101\pm 2$Not detected
    $152^{\text{E-W2}}$$149\pm 5$Not detected$148.5\pm 4.5$
    $202^{\text{N-S2}}$Not detectedNot detectedNot a
    sharp peak
    $228^{\text{E-W3}}$$225\pm 6$Not detectedNot a
    sharp peak
  • Table 3. Laser energy and intensity, target thickness, and the measured energy and peak–peak amplitude of detected signals for two shots on the ABC facility.

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    Table 3. Laser energy and intensity, target thickness, and the measured energy and peak–peak amplitude of detected signals for two shots on the ABC facility.

    Shot#1525#650
    Target Al CH$_{2}$ doped with B
    Thickness $[\unicode[STIX]{x03BC}\text{m}]$1520140
    Laser A Energy [J] 41 76
    Intensity [PW/cm$^{2}$]0.71.3
    Laser B Energy [J] 25 62
    Intensity [PW/cm$^{2}$]0.41.1
    WM insidePeak–peak amplitude [V] 60 78.5
    Energy [nJ] 107 610
    SWB insidePeak–peak amplitude [V] 179256.1
    Energy [nJ] 7836300
    WM outsidePeak–peak amplitude [V] 4.24 16.3
    Energy [nJ]0.884 33
  • Table 4. EMP energy flow at the selected ports during calculation in percentage of initial EMP energy for different absorbers. See text for explanation of abbreviations.

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    Table 4. EMP energy flow at the selected ports during calculation in percentage of initial EMP energy for different absorbers. See text for explanation of abbreviations.

    Port P1 P2 P3 P4 P2-BR
    IChAuxIChL4LDiagL4 comprBackRef
    No Abs 16.8 48.1 6.6 2.06 20.3
    TME 15.6 50.9 0.16 0.034 2.7
    P3ICh 0.45 0.42 0.071 0.025 0.28
    Both 0.47 0.45 0.002 0.001 0.066

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