Measurement of the extreme UV opacity of a hot dense gold plasma
Max-Planck-Institut für Quantenoptik - D-85748 Garching, Germany
2 Nuclear Research Center Negev - P.O. Box 9001 Beer-Sheva, Israel
Accepted: 28 September 1998
The absorption of soft X-rays by gold at density of and temperature of has been measured in the photon energy range of 50 to 300 eV. For that purpose, a thin gold foil tamped by carbon was heated by thermal X-rays generated in a laser-irradiated gold cavity and probed by X-rays emitted by a synchronized tungsten backlighter source. The measured absorption was compared with numerical calculations based on the super-transition-array model.
PACS: 52.25.Nr – Emission, absorption and scattering of X and γ radiation / 52.70.La – X-ray and γ-ray measurements / 52.50.Jm – Plasma production and heating by laser beams
© EDP Sciences, 1998