Modeling of the L-shell copper X-pinch plasma produced by the compact generator of Ecole polytechnique using pattern recognition - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physics of Plasmas Année : 2016

Modeling of the L-shell copper X-pinch plasma produced by the compact generator of Ecole polytechnique using pattern recognition

Jean Larour
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Yusuf Danisman
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Alaa Eleyan
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Mehmet Fatih Yilmaz
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Résumé

Principal component analysis is applied and compared with the line ratios of special Ne-like transitions for investigating the electron beam effects on the L-shell Cu synthetic spectra. The database for the principal component extraction is created over a non Local Thermodynamic Equilibrium (non-LTE) collisional radiative L-shell Copper model. The extracted principal components are used as a database for Artificial Neural Network in order to estimate the plasma electron temperature density and beam fractions from a representative time-integrated spatially resolved L-shell Cu X-pinch plasma spectrum. The spectrum is produced by the explosion of 25-μm Cu wires on a compact LC (40 kV 200 kA and 200 ns) generator. The modeled plasma electron temperatures are about Te ∼ 150 eV and Ne = 5 × 1019 cm−3 in the presence of the fraction of the beams with f ∼ 0.05 and a centered energy of ∼10 keV.
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Dates et versions

hal-01311157 , version 1 (03-05-2016)

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Jean Larour, Léonid Arantchouk, Yusuf Danisman, Alaa Eleyan, Mehmet Fatih Yilmaz. Modeling of the L-shell copper X-pinch plasma produced by the compact generator of Ecole polytechnique using pattern recognition. Physics of Plasmas, 2016, 23 (03), pp.033115. ⟨10.1063/1.4943874⟩. ⟨hal-01311157⟩
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