Structure of the W L alpha(1,2) x-ray spectrum - art. no. 022508

The tungsten L alpha (1,2) x-ray spectrum was measured with high resolution using photoexcitation by monochromatized synchrotron radiation. The line s plitting, widths, and relative intensities were determined from a phenomeno logical fit by five Voigt functions and compared with previous measurements . A fully split diagram and 5l(-1) spectator hole transition multiplets wer e calculated ab initio using the relativistic multiconfigurational Dirac-Fo ck method. Fits of various combinations of these multiplets to the measured spectrum show that the line shapes can be well accounted for by the fully split diagram transition 2p(3/2)(-1) --> 3d(3/2,5/2)(-1) alone, without inv oking contributions from any spectator hole transition.