Full text loading...
Experimental setup. The laser-produced x rays are spectrally dispersed by a conical KAP Bragg crystal. Transmitted x-ray spectra through different samples (Al, CH, ) are recorded onto a cooled 16 bit CCD.
X-ray source spectra obtained when focusing 5 mJ laser pulses on erbium target. Blue line with white squares: 45 fs laser pulse duration. Red line: 2.7 ps laser pulse duration. -shell spectra (a) are measured with the KAP crystal spectrometer. The energetic part of spectra is recorded with the broadband x-ray spectrometer that resolves the characteristic -lines of erbium: (b), (c), and (d).
X-ray source spectrum measured by the high resolution KAP crystal spectrometer with 5 mJ, 2.7 ps laser pulses focused on erbium target. X rays are accumulated on CCD during 30 s exposure time. -shell ( transition arrays) x-ray emission (a). Background noise (b).
X-ray absorption spectra measured near the -edge through different samples. Red: XANES of Al (a). Blue with white squares: XANES of (b). Black: CH (c). Green: XANES measurement of Al reported with a synchrotron at room temperature (vertically shifted) (d).
Article metrics loading...