PCA modeling of the L-shell Copper X-pinch plasma produced by the compact generator of ecole polytechnique
Summary form only given. 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<sup>1</sup>. The database for the principal component extraction is created over a non-LTE collisional radiative L-shell Copper model<sup>2</sup>. 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<sup>3,4</sup>. The spectrum is produced by the explosion of 25-μm Cu wires on a compact LC (40 kV, 200 kA, 200 ns) generator<sup>5</sup>. The modeled plasma electron temperatures are about T<sub>e</sub>~125 eV and N<sub>e</sub>=7×10<sup>19</sup> cm<sup>-3</sup> in the presence of the fraction of the beams with f~0.01 and centered energy of ~10 keV.