Status of Genesis a 5-MA Programmable Pulsed Power Driver

Glover, Steven F.; White, F.E.; Foster, Peter; Lucero, D. J.; Schneider, Larry X.; Reed, K.W.; Pena, Gary; Davis, JP; Hall, C. A.; Hickman, R.J.; Hodge, K.C.; Lemke, R.W.; Lehr, J.M.; McDaniel, D. H.; Puissant, J. G.; Rudys, Joseph M.; Sceiford, M. E.; Tullar, S.J.; Valde, D. M. Van De

doi:10.1109/tps.2012.2185071

Cited by 8 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous uses of this model included genetic optimization to fit the model to measured data [4] with the following assumptions: circuit and switch inductances are invariant, circuit capacitance is invariant, switch capacitance is negligible, circuit resistance is invariant, and switch resistance is monotonically decreasing.…”

Section: Switch Modelmentioning

confidence: 99%

“…Genetic optimization of the Martin-Braginskii Switch model [4] and the circuit parameters to the data. 2.…”

Section: Fitting the Measured Datamentioning

confidence: 99%

“…To date, approaches 1, 2a, and 2b have been tested with reasonable success. The first approach, genetic optimization, was presented in a previous paper [4]. The results from approaches 2a and 2b, piecewise fitting the data to the R-L-C damped harmonic oscillator, are the focus of the analysis in this paper.…”

Section: Fitting the Measured Datamentioning

confidence: 99%

“…In approach 2a the current (minus a baseline offset) over each time interval is fit to a DHO in terms of the parameters which describe its solution (A i , D i , Z i , and t 0i ): (4) Then R i , L i , and C i are calculated from the fitting results:…”

Section: Fitting the Measured Datamentioning

confidence: 99%

“…The Genesis system is being developed to meet this need [4]. This system consists of a strip line load driven by 240 modules that are connected in parallel through a low impedance transmission line.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Pulsed power switch modeling for broad operation

Glover

Foster²,

McDaniel

et al. 2012

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

Self Cite

View full text Add to dashboard Cite

Dynamic materials properties research at Sandia NationalLaboratories has resulted in research that is advancing capabilities in precision programmable pulsed power systems operating in multi-mega amp regimes. Programmable pulse shaping capabilities require the gas switches in these systems to perform over a large range of dynamic operating conditions. Runtime, jitter, and the number of channels formed are all impacted by the conditions of these switches at the time of trigger. This paper provides a model and analysis of a 200 kV gas switch designed for linear transformer drivers operating at percentages of self break ranging from 45% to 100%. This work expands on the research performed by T.H. Martin and S.I. Braginskii.

show abstract

Section: Switch Modelmentioning

confidence: 99%

“…Genetic optimization of the Martin-Braginskii Switch model [4] and the circuit parameters to the data. 2.…”

Section: Fitting the Measured Datamentioning

confidence: 99%

Section: Fitting the Measured Datamentioning

confidence: 99%

Section: Fitting the Measured Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Pulsed power switch modeling for broad operation

Glover

Foster²,

McDaniel

et al. 2012

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

Self Cite

View full text Add to dashboard Cite

show abstract

GLIDER—A pulsed-current generator for laboratory astrophysics x-ray absorption experiments

Gissis

Behar

Fisher

et al. 2020

Review of Scientific Instruments

View full text Add to dashboard Cite

In the field of pulse-power, there has always been an interest on small and medium size pulsed-current generators (≤2 MA) which are affordable and of low maintenance. We developed the GLIDER, a compact and modular generator, that drives a gas-puff z-pinch load as a soft x-ray source (0.1–1 keV) for laboratory astrophysics absorption experiments. It comprises 48 bricks, tightly packed in a 1.7 m × 3.5 m × 0.8 m transformer oil container. Its compactness and reliability was enabled owing to unique multilayered oil-soaked insulators, and more than 100 post-hole convolutes. Its stripline includes interchangeable tiles for ease of construction and maintenance. Six triggering units enable current pulse shaping. The GLIDER was tested up to ±60 kV (34 kJ) and produced 2 MA in 450 ns rise time on a 5 nH load. We present grating spectra of K-shell absorption of neutral O and N proving the experimental concept and demonstrating column density and ionization measurements.

show abstract

A compact pulsed power driver with precisely shaped current waveforms for magnetically driven loading experiments

Chen

Bin

Zhang

et al. 2022

Review of Scientific Instruments

View full text Add to dashboard Cite

Magnetically driven loading techniques based on high current pulsed power drivers are very important tools for researching material dynamic behaviors and high-pressure physics. Based on the technologies of a Marx generator energy storage and low impedance coaxial cable energy transmission, a compact high current pulsed power driver CQ-7 was developed and established at the Institute of Fluid Physics, China Academy of Engineering Physics, which can generate precisely shaped current waveforms for magnetically driven loading experiments. CQ-7 is composed of 256 two-stage Marx generators in parallel with low impedance, high voltage coaxial cables for current output. The 256 Marx generators are divided into 16 groups, and each separate group can be individually triggered to discharge and shape currents in sequence by a low jitter, high voltage pulse trigger with 16 output signals. The electrical parameters of CQ-7 are a capacitance of 20.48 µF, an inductance of 4.12 nH, and a resistance of 3.35 mΩ in a short circuit. When working at the charging voltage of ±40–±60 kV, CQ-7 can deliver a peak current from 5 to 7 MA to the short-circuit loads with a rising time of 400–700 ns at different discharging time sequences. Two different experiments were conducted to test the performance of CQ-7: magnetically driven high velocity flyer plates and solid liner implosion. The results show that CQ-7 can accelerate the aluminum flyer plate with a size of 12 × 8 × 1 mm3 to more than 7.5 km/s and uniformly drive the aluminum liner with an inner diameter of 6.2 mm and a thickness of 0.4 mm to more than 9.5 km/s. Furthermore, these experiments indicate that CQ-7 is a robust platform for material dynamics and high-pressure physics.

show abstract

Status of Genesis a 5-MA Programmable Pulsed Power Driver

Cited by 8 publications

References 12 publications

Pulsed power switch modeling for broad operation

Pulsed power switch modeling for broad operation

GLIDER—A pulsed-current generator for laboratory astrophysics x-ray absorption experiments

A compact pulsed power driver with precisely shaped current waveforms for magnetically driven loading experiments

Contact Info

Product

Resources

About