Extended Data Fig. 1: X-ray Thomson scattering spectrum and fit for data set #1.
From: Observing the onset of pressure-driven K-shell delocalization
The data (black) was recorded on experiment N170214-002-999 on the first spectrometer channel (strip 1) at 0.31 ns after peak emission, t0. The best fit (red), consisting of the free-free (blue), bound-free (green) and elastic (purple) scattering contributions, yields a temperature of T = (110 ± 15) eV, a free electron density of ne = (1.34 ± 0.15) × 1024 cm−3 and an ion charge of \(\bar{Z}=3.0\pm 0.1\) resulting in a mass density of ϱ = (6.7 ± 1.0) g/cm3 (see row #1 in Table 1).
