Title :
Plasma-opening-switch-based repetitive generator
Author :
Barinov, Nikolani U. ; Belenki, Georgi S. ; Dolgachev, Georgi I. ; Kovalev, Yuri I. ; Zakatov, Lev P. ; Ushakov, Andrei G.
Author_Institution :
Kurchatov (I.V.) Inst. of Atomic Energy, Moscow, Russia
fDate :
12/1/1995 12:00:00 AM
Abstract :
Operation peculiarities of the RS-20 generator based on the plasma opening switch (POS) including its repetitive operation capabilities are reviewed. They are: limited current value, gas emission, pulsed heat loads, etc. The feasibility of a POS with maximum impedance and relatively low (100 kA and lower) drive current is being investigated. The evolution of the POS design used in the repetitive X-ray generator RS-20 is presented in various schemes. The “reflecting” scheme has a variable anode transparency in the direction of the load and another scheme uses an external pulsed magnetic field. The paper describes a combined X-ray converter having a multilayer structure: a thin layer of fine-grained tungsten is placed between two layers of carbon film. The progress achieved in improvement of the RS-20 main units (Marx Generator, Plasma Opening Switch, X-ray Converter) made it possible to increase their lifetime to more than 107 pulses without replacement
Keywords :
plasma devices; plasma switches; pulse generators; pulsed power switches; pulsed power technology; 100 kA; Marx Generator; RS-20 generator; X-ray Converter; combined X-ray converter; external pulsed magnetic field; gas emission; limited current value; multilayer structure; operation peculiarities; plasma opening switch; plasma-opening-switch-based repetitive generator; pulsed heat loads; reflecting scheme; repetitive X-ray generator; repetitive operation capabilities; variable anode transparency; Anodes; Impedance; Magnetic fields; Magnetic films; Magnetic multilayers; Plasma x-ray sources; Pulse generation; Switches; Switching converters; Tungsten;
Journal_Title :
Plasma Science, IEEE Transactions on
