This is achieved by using a low-Z tamping layer to contain the material of interest. Because the temperatures that can be reached with current facilities are well below the kilovolt range, spectral measurements should be made in the sub-kilovolt range. This will require an effort to develop XUV instruments. Given these considerations , the experiment can be defined. A schematic of the experiment to study NLTE phenomena as it is being fielded is shown in Fig.
Heating is achieved by using the flux from the rear side of a gold burn-through foil.
The sample in this case is tamped, and the backlight can be delayed in time for the heating. Schematic of setup to study NLTE phenomena. The experimental plan is now going forward on three levels. First, we have developed a full understanding of the radiation heating source used in these experiments. Second, we have developed methods to perform the absorption spectroscopy of the heated samples.