Transient electrical discharges in small devices

Fundamental and applied research on plasmas with high energy density that a re unstable and radiate can be done at a relatively low cost with small pla sma pinches. In this paper we discuss three experiments using small pinch d evices: a capillary discharge, a Z-pinch driven by a small generator, and a low energy plasma focus. The experiments were complemented by magnetohydro dynamics numerical calculations in order to assist the design and physical interpretation of the experimental data. The diagnostics used in the experi ments include current and voltage monitors, multipinhole camera, holographi c interferometry, and vacuum ultraviolet spectroscopy. (C) 2001 American In stitute of Physics.