Efficient focusing of hard X-rays generated by femtosecond laser driven plasma
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A table top high power femtosecond laser system, that produces 130 fs, 100 mJ pulses at 10 Hz repetition rate was used to generate hard X-ray pulses from moving Cu, Mo and W wire targets. The X-ray pulses were focused with a polycapillary X-ray lens onto a 80 μm spot, resulting in a measured increase of about 3×103 in the X-ray flux compared to the X-ray flux measured without the X-ray lens. X-ray pulse width measurements reveal that after passing though the X-ray lens the pulse width is in the subpicosecond range. The focused output beam is very well suited for time resolved X-ray absorption spectroscopy. © 2004 Elsevier B.V. All rights reserved.
author list (cited authors)
Tomov, I. V., Chen, J., Ding, X., & Rentzepis, P. M.
complete list of authors
Tomov, IV||Chen, J||Ding, X||Rentzepis, PM