Figure 13
Metastable (1s5) density projection (continuous line) and fit temperature (dotted line) of the absorption profile as a function of the measurement position for the case of 100 mbar of argon, 6 mm-gap undulator and 2 mm × 2 mm X-ray beam size. The density profiled was obtained using a smoothing spline between the points. The oscillations in the fit temperature are due to the small and noisy absorption signal far from the center, resulting in large noise and a poor fit. |