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Marx generator

About: Marx generator is a research topic. Over the lifetime, 1276 publications have been published within this topic receiving 8970 citations.


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Journal ArticleDOI
TL;DR: In this article, a 5 kV pulse was generated in 50 ohm, 17 nsec after receiving a 1 3 V input signal using capacitors which are charged in parallel and discharged in series Avalanche transistors are used as the switching elements from the 0 to 1 kV level, while Elkonite spark gaps are used from the 1 to 5 kv level.

11 citations

Proceedings ArticleDOI
01 Jun 2009
TL;DR: The parasitic capacitance formed between the enclosure and Marx components can substantially exceed the inner-stage capacitance and play an important role in the Marx network performance as mentioned in this paper, which facilitates proper sequential firing of the spark switches.
Abstract: Compact linear Marx generators are frequently constructed in close-fitting metallic housings. The parasitic capacitance formed between the enclosure and Marx components can substantially exceed the inner-stage capacitance and play an important role in the Marx network performance [1][2]. This capacitance and the inner-stage inductance form the components of a lumped-constant transmission line, which facilitates proper sequential firing of the spark switches. With appropriate component values, these Marx generators can deliver fast rising and nominally flat pulses into resistive loads.

11 citations

Proceedings ArticleDOI
17 Jun 2001
TL;DR: In this article, the authors present a test bed for the development of pulsed power technologies and components that could be used in future generation high power facilities, including a 56 stage, 850-kJ Marx generator that charges a 5.5-Ohm water insulated Intermediate Storage Capacitor (ISC).
Abstract: Summary form only given. The Advanced Pulsed Power Research Module (APPRM) was created at Sandia National Laboratory (SNL) to serve as a test bed for the development of pulsed power technologies and components that could be used in future generation high power facilities. In the present configuration the test bed is comprised of a 56 stage, 850-kJ Marx generator that charges a 5.5-Ohm water insulated Intermediate Storage Capacitor (ISC) to more than 7 MV in /spl sim/1.5 us. The switches tested were located at the output end of the ISC where they connected the output to a 5.5-Ohm CuSO/sub 4/ resistive load. Several switches have been tested on APPRM. The first switch tested was an evolved version of the Sandia designed HERMES III switch. It consists of self-breakdown (cascade) section where the discharge current flows in several parallel channels, and a trigger section where the current flows through a single spark channel. The second switch tested was a Russian/Sandia Hybrid switch. The trigger section of the Hybrid switch, designed at High Current Electronics Institute (HCEI) in Tomsk, Russia, includes six HCEI composite electrodes connected in parallel to a triggered gap via a 4-uH series isolation inductor. The discharge current in the Hybrid switch trigger section flows in several parallel channels eliminating the single channel flow as in the Sandia switch trigger section. The last switch tested is a HCEI switch design where the trigger and cascade sections are comprised of HCEI composite electrodes. The design of the switches and results of these tests will be presented as well as the analysis and comparison of results.

11 citations

Proceedings ArticleDOI
19 Jun 2011
TL;DR: In this article, the authors describe the operation of a solid-state Marx generator capable of delivering multilevel and arbitrary bipolar waveforms into resistive and capacitive type loads.
Abstract: This paper describes the operation of a solid-state Marx generator capable of delivery multilevel and arbitrary bipolar waveforms into resistive and capacitive type loads. A flexible FPGA based trigger control enables the independent operation of each stage, on and off, so that the output load voltage is the sum of each stage and the voltage of an individual stage if never affected by other stages. The results obtained from a 5-stages modulator, each with 1 kV, frequency, for rectangular, triangular and other type of waveforms, achieving a maximum of 11 voltage levels (5 positive, 5 negative and zero volts), into resistive and capacitive type loads are presented and discussed.

11 citations

Journal ArticleDOI
TL;DR: In this paper, a softly focused KrF laser beam was employed to irradiate insulator SF6 gas through the rail gap along a 60 cm-long, highvoltage electrode with the power level of 5×107 W/cm2.
Abstract: Laser triggering of a SF6‐filled, 500‐kV rail gap is described. A softly focused KrF laser beam was employed to irradiate insulator SF6 gas through the rail gap along a 60‐cm‐long, high‐voltage electrode with the power level of 5×107 W/cm2. The rail gap was operated as the main switch of a 2.8‐Ω, 500‐kV Blumlein circuit, two of which drive the electron beam diodes to pump a 200‐J, 70‐ns KrF laser from both sides. Multichannel operation of the rail gap was obtained by the application of laser triggering with the result of reduced voltage fall time of 20 ns (10–90%) compared with 50 ns in the self‐breakdown mode. The jitter was also decreased to less than 2 ns in the trigger operation of the gap.

11 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202322
202255
202132
202033
201951
201845