Numéro
J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987
X-Ray and Inner-Shell Processes
Vol. 1
Page(s) C9-539 - C9-542
DOI https://doi.org/10.1051/jphyscol:1987989
X-Ray and Inner-Shell Processes
Vol. 1

J. Phys. Colloques 48 (1987) C9-539-C9-542

DOI: 10.1051/jphyscol:1987989

PARTIAL AND TOTAL PHOTOIONIZATION CROSS SECTIONS OF ATOMIC Ba, La AND Ce IN THE RANGE OF THE GIANT 4d RESONANCES

D. HANDSCHUH, M. MEYER, M. PAHLER, T. PRESCHER, M. RICHTER, B. SONNTAG and H.E. WETZEL

II. Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-2000 Hamburg 50, F.R.G.


Abstract
Total and partial (4d-l, 4f-1, 5s-1, 5p-1, 5d-l, 6s-1) cross sections of atomic Ba, La and Ce have been determined by absorption and photoelectron spectroscopy in the range of the giant 4d → (4f, εf) resonances. Many electron theories, which take polarization and relaxation effects into account, succeed to describe the gross features of the spectra, but in many cases fail to reproduce the exact energy positions, line shapes and amplitudes of the resonances in the cross sections of the main and satellite lines.