J. Phys. IV France
Volume 11, Numéro PR2, Juillet 2001
X-Ray Lasers 2000
Page(s) Pr2-325 - Pr2-328
7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-325-Pr2-328

DOI: 10.1051/jp4:2001263

Gauss broadening of X-ray laser lines by electric potential fluctuations inside atomic nuclei

M. Yu. Romanovsky

General Physics Institute, Academy of Science of Russia, Vavilov Str. 38, 117942 Moscow, Russia

The broadening of X-ray laser lines by fluctuations of electric potential inside corresponding nuclei is studied. The fluctuations are produced by neutron-proton and proton-neutron transformations when localization of electric charge inside heavy nuclei changes. Atomic (and ionic) bound electrons "feel" such fluctuation as non-central Coulomb potential. It is shown that the potential fluctuations have the Gauss distribution while nuclei are considered as drops both of normal and Fermi-liquids. Finally, an electron level asquires the Gauss broadening. Estimations show that the linewidth can be of the same order as the Doppler width for highly-ionized plasmas ions.

© EDP Sciences 2001