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 language | English (US) |
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Title of host publication | Conference Record of the International Power Modulator Symposium and High Voltage Workshop |
Pages | 415-418 |
Number of pages | 4 |
DOIs | |
State | Published - 2006 |
Externally published | Yes |
Event | 2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop) - Washington, DC, United States Duration: May 14 2006 → May 18 2006 |
Other
Other | 2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop) |
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Country | United States |
City | Washington, DC |
Period | 5/14/06 → 5/18/06 |
ASJC Scopus subject areas
- Engineering(all)