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Title: Pseudo-spark switch (PSS) characteristics under different operation conditions

Abstract

The present paper concentrates on the characteristics of the pseudospark switch (PSS) designed in a previous work. The special characteristics of PSS make it a replacement for other high voltage switches such as thyratrons and ordinary high-pressure spark gaps. PSS is characterized by short rise time and small jitter time. The pseudo park chamber consists of two hollow cylindrical electrodes made of a stainless steel material (type 306L) separated by an insulator. The insulator used in our design is a glazed ceramic 70 mm in diameter and 3.5 mm in thickness. A PSS with an anode voltage of 29.2 kV, and a current of 3.6 kA and 11 ns rise time was achieved and used successfully at a repetition rate of about 2.2 kHz. A simple trigger circuit designed, built, and used effectively reaching more than 1.56 kV trigger pulse which is sufficient to ignite the argon gas inside the cathode to cause a breakdown. A non-inductive dummy load is designed to be a new technique to find the accurate value of the PSS inductance. A jitter time of ±10 ns pulses is observed to occur in a reliable manner for more than 6 h of continuous operation. In this research, the important parameters of this switch likemore » rise time, peak current, and anode voltage were studied at various values of charging capacitance. The lifetime of this system is depending on the kind of the electrode material and on the type of insulation material in the main gap of the pseudospark switch.« less

Authors:
;  [1];  [2]
  1. College of Science, Al Nahrain University, Jadria, Baghdad (Iraq)
  2. Ministry of Science and Technology, Jadria, Baghdad (Iraq)
Publication Date:
OSTI Identifier:
22599882
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; CAPACITANCE; CATHODES; CERAMICS; CYLINDRICAL CONFIGURATION; ELECTRIC POTENTIAL; GLAZES; INDUCTANCE; KHZ RANGE 01-100; PULSE RISE TIME; PULSES; STAINLESS STEELS; SWITCHES; THICKNESS; THYRATRONS; TRIGGER CIRCUITS

Citation Formats

Hamad, B. H., E-mail: dr.bassmahussain@gmail.com, Ahmad, A. K., E-mail: ahmad.kamal@sc.nahrainuniv.edu.iq, and Lateef, K. H., E-mail: kamalhlatif@yahoo.com. Pseudo-spark switch (PSS) characteristics under different operation conditions. United States: N. p., 2016. Web. doi:10.1063/1.4961918.
Hamad, B. H., E-mail: dr.bassmahussain@gmail.com, Ahmad, A. K., E-mail: ahmad.kamal@sc.nahrainuniv.edu.iq, & Lateef, K. H., E-mail: kamalhlatif@yahoo.com. Pseudo-spark switch (PSS) characteristics under different operation conditions. United States. doi:10.1063/1.4961918.
Hamad, B. H., E-mail: dr.bassmahussain@gmail.com, Ahmad, A. K., E-mail: ahmad.kamal@sc.nahrainuniv.edu.iq, and Lateef, K. H., E-mail: kamalhlatif@yahoo.com. 2016. "Pseudo-spark switch (PSS) characteristics under different operation conditions". United States. doi:10.1063/1.4961918.
@article{osti_22599882,
title = {Pseudo-spark switch (PSS) characteristics under different operation conditions},
author = {Hamad, B. H., E-mail: dr.bassmahussain@gmail.com and Ahmad, A. K., E-mail: ahmad.kamal@sc.nahrainuniv.edu.iq and Lateef, K. H., E-mail: kamalhlatif@yahoo.com},
abstractNote = {The present paper concentrates on the characteristics of the pseudospark switch (PSS) designed in a previous work. The special characteristics of PSS make it a replacement for other high voltage switches such as thyratrons and ordinary high-pressure spark gaps. PSS is characterized by short rise time and small jitter time. The pseudo park chamber consists of two hollow cylindrical electrodes made of a stainless steel material (type 306L) separated by an insulator. The insulator used in our design is a glazed ceramic 70 mm in diameter and 3.5 mm in thickness. A PSS with an anode voltage of 29.2 kV, and a current of 3.6 kA and 11 ns rise time was achieved and used successfully at a repetition rate of about 2.2 kHz. A simple trigger circuit designed, built, and used effectively reaching more than 1.56 kV trigger pulse which is sufficient to ignite the argon gas inside the cathode to cause a breakdown. A non-inductive dummy load is designed to be a new technique to find the accurate value of the PSS inductance. A jitter time of ±10 ns pulses is observed to occur in a reliable manner for more than 6 h of continuous operation. In this research, the important parameters of this switch like rise time, peak current, and anode voltage were studied at various values of charging capacitance. The lifetime of this system is depending on the kind of the electrode material and on the type of insulation material in the main gap of the pseudospark switch.},
doi = {10.1063/1.4961918},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = 2016,
month = 8
}
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