Figure 11
(Left) Histogram of the FEL relative line-width in a sequence of about 500 spectra (95% of the data) for FEL-2 at 5.4 nm. (Center and right) Spectral images of FEL-2 at 5.4 nm and 4.0 nm, respectively. The relative spectral line-widths relevant to the spectral images shown are 0.019% at 5.4 nm and 0.05% at 4.04 nm. |