Dielectric breakdown characteristics of a high current metal vapor plasma

Abstract

Time-and spatially-resolved spectroscopy is used to study the early-time spectral features of the plasmas produced by h~gh~u~ent, capacitive discharges through thin silver films. Spectra are compared for several support gases including C02, He, and an Ar/O, mixture. Al1 measurements were made during the first 40 ps of the discharge. At atmospheric pressure for all three gases, spectra from support gas species show intense lines for only a brief interval between 10 and 30 ,us after the start of the discharge. Greatest intensity from silver tines always occurs at the film surface; while greatest intensity from support gas species occurs about 2.0 mm from the film surface. A magnetic field of a few kG normal to the electric field in the plasma and parallel to the thin film surface almost completely eliminates spectral lines from the support gas species.

Preliminary characterization of a graphite vapor plasma in a theta-pinch magnetic field

“…Several recent studies have shown that external magnetic fields can be very effective in altering plasma properties for microwave-induced plasmas (3), high-current capacitive discharge plasmas (4)(5)(6)(7)(8), and glow-discharge plasmas with currents in the millampere range (9)(10)(11). The presence of the magnetic field causes ions and electrons to precess in circular paths in the plane normal to the field direction.…”

Improving the Conductivity and Porosity of Coal with NaCl Solution for High-Voltage Electrical Fragmentation

“…12 In 2000, the Russian Academy of Sciences developed a high-power pulse generator based on reverse transistor switching according to electrohydraulic fragmentation. 13 Timoshkin et al 14 evaluated the pulsed plasma drilling machine for miniature hole drilling. In recent years, some scholars used HVEP to separate valuable materials in circuit boards.…”

“…In the past few decades, rapid developments were made with regard to the HVEP technology. , Many scholars proposed high-power pulsed rock-breaking technology . In 2000, the Russian Academy of Sciences developed a high-power pulse generator based on reverse transistor switching according to electrohydraulic fragmentation . Timoshkin et al evaluated the pulsed plasma drilling machine for miniature hole drilling.…”