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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.


Papers
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01 Jan 2011
TL;DR: In this paper, a novel topology for the generation of high voltage pulses that uses both slow and fast solid-state power switches is presented, which includes diode-capacitor units in parallel with commutation circuits connected to a positive buck-boost converter.
Abstract: This paper presents a novel topology for the generation of high voltage pulses that uses both slow and fast solid-state power switches. This topology includes diode-capacitor units in parallel with commutation circuits connected to a positive buck-boost converter. This enables the generation of a range of high output voltages with a given number of capacitors. The advantages of this topology are the use of slow switches and a reduced number of diodes in comparison with conventional Marx generator. Simulations performed for single and repetitive pulse generation and experimental tests of a prototype hardware verify the proposed topology.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the temporal behaviors of a compact X-ray source driven by a low-energy capacitor discharge have been studied and a variable short-wavelength pulsed-light source was proposed.
Abstract: Temporal behaviors of a compact X-ray source driven by a low-energy capacitor discharge have been studied. X-rays are emitted only when the voltage appears between the anode and cathode at the beginning of the discharge, when the discharge current is small. The temporal X-ray emission profile has a significant correlation with the electrode voltage. Therefore, high discharge currents and high-energy capacitors are unnecessary. Spectral and spatial properties of the X-ray source are investigated by aluminum filters and thermoluminescent dosimetry. When the generator output voltage is 95 kV, the photon energy ranging from 15 to 30 keV is nearly 63% of the emitted X-ray and the maximum photon energy of 84.7 keV is obtained. Applying the experimental results, we propose a variable short-wavelength pulsed-light source.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the Marx generator was used to produce electrical discharges in water, which were then broken into small pieces and the circuit elements were separated from the boards after several tens of discharges.
Abstract: Fragmentation using pulsed power discharges in water seems one of promising methods for recycling of refuse circuit boards in electrical appliances. The Marx generator, which provides voltage of up to 480 kV and energy of up to 7.7 kJ, was employed to produce the electrical discharges in water. Refuse circuit boards were successfully broken into small pieces, and the circuit elements were separated from the boards after several tens of discharges. The amount of fragmentation is dependent on energy supplied from the Marx generator. Also the fracturing mechanism of circuit boards is described.

3 citations

Book ChapterDOI
01 Jan 1976
TL;DR: In this paper, a 2 MeV, 200 kA generator with 10−90% rise and fall times of 10 ns and a 1 MeV 100 kA with less than 5 ns is presented.
Abstract: Recent developments in e-beam excited laser systems have led to a requirement for very fast rise and fall time, short pulse, low impedance e-beam generators. Advances in low impedance e-beam generator technology to meet this requirement are discussed. Two advanced design machines have been built — a 2 MeV, 200 kA generator with 10–90% rise and fall times of 10 ns, and a 1 MeV, 100 kA generator with rise and fall times of less than 5 ns. The design of these machines and their measured output characteristics are presented in this paper.

3 citations

Journal ArticleDOI
TL;DR: This research has developed a PFM with a quasi-squared output waveform based on a simplified 2 LC section circuit, which shows potential to reduce the size of the high power generator system that is based on it.
Abstract: A pulse forming module (PFM) with a multifunction of energy storage and a quasi-squared pulse output is developed to meet the challenge of a compact design and square output waveform in a high-power Marx generator. A simplified pulse forming circuit comprising only 2 parallel connected LC sections, in which every section contains an inductor and a capacitor in series, has been proposed and investigated carefully to obtain a quasi-squared waveform. Influences of inductance values in the circuit on its output waveform to a resistive load are investigated. PFMs are designed and fabricated based on the 2 LC section circuit, in which series folded film capacitors are employed to achieve a high energy density of 0.04 J/cm3 at a charging voltage of 120 kV. The as-designed module can output a quasi-squared waveform with FWHM of about 180 ns and the flattop duration greater than 90 ns. It can work at a repetition rate as high as 50 Hz, while the output waveforms show small differences. This research has developed a PFM with a quasi-squared output waveform based on a simplified 2 LC section circuit, which shows potential to reduce the size of the high power generator system that is based on it.

3 citations


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