A Model For The Optically Triggered Pseudo-Spark Thyratron Using Local Field And Beam-Bulk Methods

Hoyoung Pak; Mark J. Kushner

doi:10.1117/12.951337

10 April 1989 A Model For The Optically Triggered Pseudo-Spark Thyratron Using Local Field And Beam-Bulk Methods

Hoyoung Pak, Mark J. Kushner

Proceedings Volume 1046, Pulse Power for Lasers II; (1989) https://doi.org/10.1117/12.951337
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The optically triggered psuedo-spark, also known as the Back-Lit-Thyratron (BLT), is a low pressure plasma switch having an unheated metallic cathode. In this paper, a computer simulation of the BLT is presented consisting of a 2-1/2 dimensional time dependent continuum model for electron and ion transport. The model utilizes both the local field approximation and a beam component for the electron distribution function. We find that switch closure depends critically on the formation of a virtual anode in front of the cathode hole by generation of positive space charge.

Citation Download Citation

Hoyoung Pak and Mark J. Kushner "A Model For The Optically Triggered Pseudo-Spark Thyratron Using Local Field And Beam-Bulk Methods", Proc. SPIE 1046, Pulse Power for Lasers II, (10 April 1989); https://doi.org/10.1117/12.951337

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