NDLI: Particle-in-Cell Model of a Laser-Triggered Spark Gap

Content Provider	IEEE Xplore Digital Library
Author	Worts, E.J. Kovaleski, S.D.
Copyright Year	1973
Abstract	A particle-in-cell simulation of the streamer formation process in a laser-triggered spark gap has been developed to estimate streamer radius and conductivity under a variety of conditions. The motivation for developing the model was to understand the initial conditions of the switching arc in a laser-triggered spark gap, with the goal of accelerating the resistive decay of the arc. In a parallel plate switch configuration with dimensions of 0.6 mm times 0.3 mm, the electric field was varied from 2 to 5 MV/m, the gas pressure was varied from 1 to 1.5 atm, and the gas type was varied between Ar and Ne. The laser triggering parameters, including the laser ionization rate (from 5 to 20middot10¹⁸ s^-1), laser spot area (from 1200 to 4800 mum²), and laser spot orientation relative to the electric field, were also varied. The electric field had a large influence on radius, increasing it by 19% with increasing field, and on conductivity, resulting in a 285% increase with increasing field. Among the laser triggering parameters, a linear focal spot-oriented transverse relative to the electric field direction was observed to produce a very large increase in streamer radius
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1640
Ending Page	1645
Page Count	6
File Size	208900
File Format	PDF
ISSN	00933813
Volume Number	34
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser modes Gas lasers Switches Conductivity Atmospheric modeling Ionization Spark gaps Electrodes Plasma density Electric resistance streamer Particle-in-cell (PIC) model spark gap
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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