Figure 1
From: Measurement of Electron-Ion Relaxation in Warm Dense Copper
Schematic of the experimental set-up.
The femtosecond optical pulse is focused on the sample to provide 0.32 ~ 0.6 J/cm2 absorption fluence. The broadband x-ray beam (900 ~ 1,000 eV) from the ALS undulator is overlapped with the optical laser pulse on the sample.
