EXPERIMENTAL-STUDY OF A PLASMA IN THE CONSTRICTION OF A FAST Z-PINCH

Experimental studies of the formation of constrictions in the dense hy drocarbonic Z-pinch plasma were performed in the Modul A-5 device (V = 100 kV, I = 4.5 MA, rho = 0.04 Ohm). The formation of the constrictio n was accompanied by the creation of a dense hot plasma with the large Lawson parameter nz. The plasma parameters were measured by using X-r ay diagnostics: an X-ray crystal spectrograph, semiconductor detectors , a multihole pin-hole camera, and X-ray image tubes. The formation of hot dense plasma regions with the characteristic size less than or eq ual to 100 mu m, temperature from 0.6 to 0.8 keV, and density n(e) app roximate to 10(22) cm(-3) was observed in the region where the initial constriction was preformed.