NDLI: Pre-pulse suppression on Eros at AWE

Content Provider	IEEE Xplore Digital Library
Author	Sinclair, M. Crotch, I. Threadgold, J. Phillips, M.
Copyright Year	2003
Description	Author affiliation: Adv. AGEX Group, AWE Aldermaston, Reading, UK (Sinclair, M.; Crotch, I.; Threadgold, J.; Phillips, M.)
Abstract	The Eros facility at AWE was designed to simulate radiation effects using a large area diode driven by a low impedance Blumlein charged by a Marx generator. Recent interest at AWE to develop low impedance, high current pinched diodes, have lead to a need to use Eros for these experiments. Unfortunately Eros has no pre-pulse suppression beyond the balancing circuit that evens out the charging of the inner and outer lines of the Blumlein. This allows a pre-pulse of +/- 100 kV to reach the diode during the charging phase of the machine, too high a level for pinched diodes. To reduce the pre-pulse two options were considered, both of which are needed: 1) to install a pre-pulse gap into the stalk of the MITL; and 2) to install rail gap switches between the inner cylinder of the Blumlein and the insulator stack. The stalk pre-pulse gap was demonstrated to work on Eros improving self-magnetic pinch diode performance. The rail gaps were designed and then fitted during the year. Together these switches reduced the total pre-pulse on the diode by a factor of eight.
Sponsorship	Pulsed Power Sci. and Technol. Committee of the IEEE Nuclear and Plasma Sci. Soc
Starting Page	1209
Ending Page	1212
File Size	298064
Page Count	4
File Format	PDF
ISBN	0780379152
DOI	10.1109/PPC.2003.1278030
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diodes Rails Impedance Switches Radiography Circuits Hydrodynamics Cathodes Design methodology Pulse measurements
Content Type	Text
Resource Type	Article

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