Oil-switched planar blumlein pulse generators for dielectric wall accelerators

Mark Rhodes, Steve Sampayan, Jim Watson, George J Caporaso

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We are developing oil-switched, planar-Blumlein pulse-generators for use in high-gradient dielectric-wall accelerators (DWA). This technology is applicable to a variety of applications including both proton and electron accelerators. In our designs, simple spark-gap switches are very tightly integrated to the ends of solid-insulated planar-Blumlein pulse - forming lines. We can operate the switches with either pressurized gas or liquid (oil). By using oil as the switching medium, we have eliminated the requirement for a pressure interface around the switch. We immerse the entire assembly including the switch region in oil. In gas switches, switch-gap and pressure are the free parameters to set the operating voltage. With oil switches, the adjustment parameters are gap and charging time. We have built a single-stage prototype with Mylar/Oil insulation that generates a 5-ns pulse with <1-ns risetime. To date, we have achieved an operating gradient of 38 MV/m with a goal of 50 MV/m into a matched load using 50 ns pulse-charge time. We operate the switch in self-break mode. For multi-stage versions, we plan on adding triggers to the switches. We present our experimental design and most recent results.

Original languageEnglish (US)
Title of host publicationConference Record of the International Power Modulator Symposium and High Voltage Workshop
Pages415-418
Number of pages4
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop) - Washington, DC, United States
Duration: May 14 2006May 18 2006

Other

Other2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop)
CountryUnited States
CityWashington, DC
Period5/14/065/18/06

ASJC Scopus subject areas

  • Engineering(all)

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    Rhodes, M., Sampayan, S., Watson, J., & Caporaso, G. J. (2006). Oil-switched planar blumlein pulse generators for dielectric wall accelerators. In Conference Record of the International Power Modulator Symposium and High Voltage Workshop (pp. 415-418). [4216224] https://doi.org/10.1109/MODSYM.2006.365272