Optimization of power compression in stable relativistic channels for biological microimaging with ultra-bright multi-keV coherent X-ray source

Current experimental studies of the 4.5 keV X-ray source are focused on the properties of single-pulse Xe(L) spectra recorded with a von Hamos spectrometer equipped with a mica crystal and a linear CCD array. Observations of single-pulse Xe(L) spectra under conditions of strong amplification in the channel have indicated the presence of spectral hole-burning on the Xe/sup 34+/ and Xe/sup 35+/ 3d/spl rarr/2p transition arrays in the /spl lambda//spl sim/2.84-2.88 /spl Aring/ range.