Jitter and recovery rate of a triggered spark GAP with high pressure gas mixtures

Yeong Jer Chen, J. Dickens, J. Walter, M. Kristiansen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Recent research efforts at Texas Tech University on impulse antenna phased array has necessitated the need to develop a reliable high voltage, high repetition rate switch that will operate with ultra low jitter. An ideal jitter of a small fraction of the rise-time is required to accurately synchronize the array to steer and preserve the rise-time of the radiated pulse. In [1], we showed the initial test system with sub-ns results for operations in different gases and gas mixtures. This paper presents the impact gases and gas mixtures have on switch performance which includes recovery rate and in particular jitter. A 50 Ω, 1 nF pulse forming line is charged to 50 kV and provides the low inductance voltage source to test the different gases. Triggering is provided by a solid state opening switch voltage source that supplies ∼150 kV, 10 ns rise-time pulses at a rep rate up to 100 Hz in burst mode. A hermetically sealed spark gap with a Kel-F lining is used to house the switch and high pressure gas. This paper discusses in detail 50 kV, 100 Hz switch operations with different gases, in particular, mixtures of Kr85. Switch jitter as a function of operation time and gas temperature is also evaluated.

Original languageEnglish
Title of host publicationPPC2009 - 17th IEEE International Pulsed Power Conference
Pages244-249
Number of pages6
DOIs
StatePublished - 2009
Event17th IEEE International Pulsed Power Conference, PPC2009 - Washington, DC, United States
Duration: Jun 28 2009Jul 2 2009

Publication series

NamePPC2009 - 17th IEEE International Pulsed Power Conference

Conference

Conference17th IEEE International Pulsed Power Conference, PPC2009
CountryUnited States
CityWashington, DC
Period06/28/0907/2/09

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