Fast primary storage device utilizing a linear pulse transformer

Kovalchuk, B. M.; Vizir, V.A.; Kim, A. A.; Kumpyak, E. V.; Loginov, S. V.; Bastrikov, A.N.; Chervyakov, V. V.; Tsoi, N. V.; Monjaux, P.; Kh’yui, D.

doi:10.1007/bf02524302

Cited by 39 publications

(16 citation statements)

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“…The LTD concept was pioneered in 1995-1997 at the High Current Electronics Institute (HCEI), in Tomsk, Russia, by Boris M. Kovalchuk et al [23]. LTDs have since been called "the greatest advance in prime-power generation since the invention of the Marx generator in 1924" [116].…”

Section: Worldmentioning

confidence: 99%

“…We will first establish a basic, general picture of a pulsed-power-driven HEDP experiment. We will then use this picture to understand a relatively new pulsed-power technology for HEDP called Linear Transformer Drivers (LTDs) [23]- [38]. To provide a basis for comparison, we will also briefly describe the more traditional Marx-generator/pulse-forming-line approach to driving HEDP experiments.…”

Section: Introductionmentioning

confidence: 99%

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A Primer on Pulsed Power and Linear Transformer Drivers for High Energy Density Physics Applications

McBride

Stygar

Cuneo

et al. 2018

IEEE Trans. Plasma Sci.

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Section: Worldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Primer on Pulsed Power and Linear Transformer Drivers for High Energy Density Physics Applications

McBride

Stygar

Cuneo

et al. 2018

IEEE Trans. Plasma Sci.

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“…A linear-transformer-driver (LTD) module is an induction voltage adder that is powered by circuits located within the cavities of the adder [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Since an LTD module can be designed to provide single-stage electrical-pulse compression and impedance matching, such modules are attractive candidates as prime-power sources for nextgeneration pulsed-power accelerators .…”

Section: Introductionmentioning

confidence: 99%

Impedance-matched Marx generators

Stygar

LeChien

Mazarakis

et al. 2017

Phys. Rev. Accel. Beams

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We have conceived a new class of prime-power sources for pulsed-power accelerators: impedancematched Marx generators (IMGs). The fundamental building block of an IMG is a brick, which consists of two capacitors connected electrically in series with a single switch. An IMG comprises a single stage or several stages distributed axially and connected in series. Each stage is powered by a single brick or several bricks distributed azimuthally within the stage and connected in parallel. The stages of a multistage IMG drive an impedance-matched coaxial transmission line with a conical center conductor. When the stages are triggered sequentially to launch a coherent traveling wave along the coaxial line, the IMG achieves electromagnetic-power amplification by triggered emission of radiation. Hence a multistage IMG is a pulsed-power analogue of a laser. To illustrate the IMG approach to prime power, we have developed conceptual designs of two ten-stage IMGs with LC time constants on the order of 100 ns. One design includes 20 bricks per stage, and delivers a peak electrical power of 1.05 TW to a matched-impedance 1.22-Ω load. The design generates 113 kV per stage and has a maximum energy efficiency of 89%. The other design includes a single brick per stage, delivers 68 GW to a matched-impedance 19-Ω load, generates 113 kV per stage, and has a maximum energy efficiency of 90%. For a given electrical-poweroutput time history, an IMG is less expensive and slightly more efficient than a linear transformer driver, since an IMG does not use ferromagnetic cores.

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“…The stagnation process enables a conversion efficiency of up to 15% from the stored electrical energy to radiation [7]. This high efficiency provides a strong motivation for the pursuit of relevant technologies, such as the lineartransformer-driver (LTD), which was initiated by the High Current Electron Institute (HCEI) in Russia [8][9][10][11][12][13][14]. Considerable work [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] has been conducted worldwide over the past 15 years in development of LTD components and systems.…”

Section: Introductionmentioning

confidence: 99%

Design of a 5-MA 100-ns linear-transformer-driver accelerator for wire array Z-pinch experiments

Zhou

Wang

et al. 2016

Phys. Rev. Accel. Beams

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The linear-transformer-driver (LTD) is a recently developed pulsed-power technology that shows great promise for a number of applications. These include a Z-pinch-driven fission-fusion-hybrid reactor that is being developed by the Chinese Academy of Engineering Physics. In support of the reactor development effort, we are planning to build an LTD-based accelerator that is optimized for driving wire-array Z-pinch loads. The accelerator comprises six modules in parallel, each of which has eight series 0.8-MA LTD cavities in a voltage-adder configuration. Vacuum transmission lines are used from the interior of the adder to the central vacuum chamber where the load is placed. Thus the traditional stack-flashover problem is eliminated. The machine is 3.2 m tall and 12 m in outer diameter including supports. A prototype cavity was built and tested for more than 6000 shots intermittently at a repetition rate of 0.1 Hz. A novel trigger, in which only one input trigger pulse is needed by utilizing an internal trigger brick, was developed and successfully verified in these shots. A full circuit modeling was conducted for the accelerator. The simulation result shows that a current pulse rising to 5.2 MA in 91 ns (10%-90%) can be delivered to the wire-array load, which is 1.5 cm in height, 1.2 cm in initial radius, and 1 mg in mass. The maximum implosion velocity of the load is 32 cm=μs when compressed to 0.1 of the initial radius. The maximum kinetic energy is 78 kJ, which is 11.7% of the electric energy stored in the capacitors. This accelerator is supposed to enable a radiation energy efficiency of 20%-30%, providing a high efficient facility for research on the fast Z pinch and technologies for repetition-rate-operated accelerators.

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Fast primary storage device utilizing a linear pulse transformer

Cited by 39 publications

References 0 publications

A Primer on Pulsed Power and Linear Transformer Drivers for High Energy Density Physics Applications

A Primer on Pulsed Power and Linear Transformer Drivers for High Energy Density Physics Applications

Impedance-matched Marx generators

Design of a 5-MA 100-ns linear-transformer-driver accelerator for wire array Z-pinch experiments

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