- 氦气气体靶获得X射线参考指标：
- laser: 50 TW, 30fs, 10Hz
- bright: 10^6 photons/shot/0.1% BW
- collimated: 10’s mrad
- ultrashort: 10’s fs
- broadband: 1-10 keV
- small source size: 1- 2 microns
- monitor the dynamics of material structure with femtosecond time resolution
- observation of ultrafast structural dynamics using an X-ray pulse
(solid-liquid phase transition in a semiconductor)
