Diagnostic of energetic electrons in dense z-pinch plasmas

We discuss the diagnostic of energetic electron beams in z-pinch plasmas using x-ray line polarization spectroscopy. Our previous work in this area has been related to the study of polarization of dielectronic satellite lines of Li- and Be-like Mg and Fe ions in low-density plasmas. Here we extend our work to the case of z-pinch plasmas. We calculate the polarization properties of dielectronic satellite lines of Be-like Ne, Ar and Fe ions. These results can be used to diagnose the energy and directionality of energetic electron beams. This work is motivated by the development of a new Dense Z-pinch Program at University of Nevada, Reno. (see B.S. Bauer et al this conference). However, the results can also be applied to other z-pinch devices.