Topic
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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21 Jan 2015
TL;DR: In this article, a disk-binary-type compact Marx generator has been proposed for the utility model, where a load resistor is arranged in the gap between the first semicircular capacitor set and the second semicircularity capacitor set.
Abstract: The utility model discloses a disk-binary-type compact Marx generator A first semicircular capacitor set and a second semicircular capacitor set form a capacitor disk The capacitor disk is in circular ring shape A switch chamber is arranged at the middle of the circular ring, and the central point of the switch chamber is superposed with the central point of the capacitor disk Spark gap switches are arranged in the switch chamber Charging inductors include positive and negative charging inductors The positive and negative charging inductors are symmetrically distributed with respect to the diameter of the switch chamber A load resistor is arranged in the gap between the first semicircular capacitor set and the second semicircular capacitor set The charging inductors are electrically connected with the capacitor disk Two ends of each spark gap switch are respectively and electrically connected with the first semicircular capacitor set and the second semicircular capacitor set One end of the load resistor is electrically connected with an output end of the capacitor disk, and the other end of the load resistor is grounded The disk-binary-type compact Marx generator has the advantages that capacitance values can be flexibly and conveniently selected, and the structure is compact
1 citations
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06 Jul 2008
TL;DR: A compact ten stage Marx with six parallel 40kV/5600pF capacitors per stage, developed for various pulsed power applications, is described in this article, which can generate as high as 250kV less than 5ns rise time pulse into a 100-150 ohm load.
Abstract: A compact ten stage Marx with six parallel 40kV/5600pF capacitors per stage, developed for various pulsed power applications, is described. Every two stages have a common unattached gas switch so there are five switches that of two are trigger switch and three are self-breakdown switch. The spark gaps and capacitors are arranged radially at sixty degree intervals. Unique features of the Compact Marx include a peaking switch and a peaking capacitor that formed by the structure. It is 43cm in diameter and 67cm in height. It can generate as high as 250kV less than 5ns rise time pulse into a 100-150 ohm load.
1 citations
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17 Jun 2001TL;DR: In this paper, a programmable plasma filling of the POS gap was proposed to increase the conduction phase time of a two-stage generator with a POS as a power intensifying element shortened with an inductive load.
Abstract: Summary form only given, as follows. Plasma opening switch (POS) with an applied extrinsic magnetic field allows to Teach maximum voltage multiplication. However, this regime limits the charge density through the POS that reduces current value and pulse duration. The increase of the POS conduction phase duration allows to obtain a substantial growth in charge and energy densities transferred through the POS. This problem is important for the "Baikal" program of superpower generator creation. The machine as assumed will provide a long high current pulse which should be sharpened employing POS technology. To increase the conduction phase time it was proposed to use a special programmable plasma filling of the POS gap. This allows to maintain plasma concentration at low level providing an erosion regime for the conduction phase. The experiments aimed to increase the conduction phase time up to 40 ms used a complex form pulse obtained from a two-stage generator with a POS as a power intensifying element shortened with an inductive load. The first "long" stage utilized a 6 mF and 50 kV battery with a 40 ms current rise time. The second "short" part of the pulse was formed by a Marx generator (0.4 mF, 200 kV) with a quarter of period at 1 ms. The time interval between two parts of the pulse was 20-40 ms.
1 citations
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07 Apr 1991TL;DR: In this article, the highvoltage pulses excitation of a glow-discharge electron beam source has been experimentally investigated, and the beam source was driven at voltages ranging from tens of kilovolts to values in excess of 100 kV by means of either a capacitor discharge circuit or a Marx generator.
Abstract: The high-voltage pulses excitation of a glow-discharge electron beam source has been experimentally investigated. A solid aluminum cathode 2.5 cm in diameter with a concave front face was employed. The beam source was driven at voltages ranging from tens of kilovolts to values in excess of 100 kV by means of either a capacitor discharge circuit or a Marx generator. It has been possible to extract beams whose currents vary from the tens to the hundreds of amperes in helium at pressures of 50 mtorr to 15 torr. The pulsewidths ranged from 30 ns to 300 ns, and beam generation efficiencies between 14% and 57% were obtained. It has been found that the maximum peak beam current and the corresponding beam generation efficiency occur at an optimal gas pressure which is a function of the discharge voltage. The beam generation efficiency itself is seen to be primarily a function of the discharge current. >
1 citations
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TL;DR: The design and working principle of a flash x‐ray system and an example for the application of the system in microsecond pulse radiolysis is presented.
Abstract: Design and working principle of a flash x‐ray system is described. A two‐stage Marx generator is used, the charging voltage is 150 kV, the stored energy 1125 J. Anode and cathode are arranged coaxially. The anode consists of a tungsten coated aluminium tube of 20 mm i.d. into which the substances to be irradiated are placed. Measurements of electrical and radiation parameters are described. The x‐ray dose per pulse is 400 rad, the half‐width of the pulse is 0.2 μsec and the mean quantum energy 44 keV. An example for the application of the system in microsecond pulse radiolysis is presented.
1 citations