Analysis from space resolved X-ray spectra from laser plasma

High dynamic range, space-resolved X-ray spectra, obtained using a TIAP crystal and a cooled CCD camera as a detector, were used to investigate the electron density and temperature profiles of an aluminum laser plasma with micrometer resolution. The electron density profile retrieved from the measurements is compared with numerical predictions from the two hydrodynamics codes MEDUSA (1D) and POLLX (2D). It is shown that 2D density profiles can be successfully reproduced by 1D simulations using a spherical geometry with an ad hoe initial radius, leading to similar electron temperature profiles.