Abstract

We demonstrate a subpicosecond 1 kHz femtosecond x-ray source with a well-accessible quasi-point size ($10\mu \mathrm{m}$ diameter) providing Cu $K_{\alpha }$ emission with a maximum flux of $6.8\times {10}^{10}\text{\hspace{0.17em} photons}∕\mathrm{s}$ for continuous operation of 10 h. A new geometry that essentially facilitates the adjustment and diminishes the temporal jitter between the x-ray probe and the laser pump pulse is implemented for time-resolved diffraction experiments.

© 2005 Optical Society of America

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