International Colloquium on X-ray Lasers / Colloque International sur les Lasers Rayons X
J. Phys. Colloques 47 (1986) C6-117-C6-120
DOI: 10.1051/jphyscol:1986615
NEW ASPECTS OF X-RAY LASERS PUMPED BY PHOTOIONIZATION
E.E. FILLMax-Planck-Institut für Quantenoptik, D-8046 Garching, F.R.G.
Abstract
It is shown that a steady state inversion on hydrogenic states can be obtained if a fully ionized plasma is subjected to the appropriate kind of radiation. Two well defined cases are numerically investigated : 1. narrow band pumping radiation, 2. black body pumping radiation. Special emphasis is given to the question if radiative cooling of the plasma is sufficient to prevent a temperature increase of the electron gas which would destroy the inversion.