We demonstrate a subpicosecond 1 kHz femtosecond x-ray source with a well-accessible quasi-point size (10 µm diameter) providing Cu K_alpha emission with a maximum flux of 6.8×10^10 photons/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
Nickolai Zhavoronkov, Yuri Gritsai, Matias Bargheer, Michael Woerner, Thomas Elsaesser, Flavio Zamponi, Ingo Uschmann, and Eckhart Förster, "Microfocus Cu K_alpha source for femtosecond x-ray science," Opt. Lett. 30, 1737-1739 (2005)