We report on the application of well-balanced Ross-filter systems for the diagnostics of x-ray emission from a Z-pinch plasma. The composition and thicknesses of the filter layers were so selected to yield the intensities of neon H- and He-like emission lines separately with relatively good accuracy. The systems provide convenient absolute and time-dependent measurements of the emission intensities, and they are particularly useful for relatively low source-light intensities. The applicability of the systems is examined with the aid of time-dependent modeling of the stagnating plasma, using collisional-radiative and radiation transport calculations. The data and modeling are used to yield information on time evolution of the plasma density and temperature at stagnation.
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