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High-power 1 kHz laser-plasma x-ray source for ultrafast x-ray absorption near-edge spectroscopy in the keV range
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10.1063/1.2991293
/content/aip/journal/apl/93/12/10.1063/1.2991293
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/12/10.1063/1.2991293
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

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.

Image of FIG. 2.
FIG. 2.

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).

Image of FIG. 3.
FIG. 3.

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).

Image of FIG. 4.
FIG. 4.

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).

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/content/aip/journal/apl/93/12/10.1063/1.2991293
2008-09-26
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-power 1 kHz laser-plasma x-ray source for ultrafast x-ray absorption near-edge spectroscopy in the keV range
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/12/10.1063/1.2991293
10.1063/1.2991293
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