Foil-flyer electro-magnetic accelerator initial results from a new AWE pulsed power generator

Omar, K.; Graneau, Neal; Sinclair, Mark; Novac, B.M.; Smith, I.R.

doi:10.1109/ppc.2011.6191554

Cited by 5 publications

(6 citation statements)

References 8 publications

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“…Experiments were carried out on the QUATTRO bank at Loughborough [7] using 2 MIDOT filaments which were 50 µm thick and 2.5 mm wide (the closest match to the filament size in the 2D model described in [1]) as shown in Figure 19. Placing one sensor in the centre of the flyer plate and another along the edge allowed the largest difference in signals to be measured.…”

Section: E Initial High Current Testsmentioning

confidence: 99%

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A novel current density distribution sensor for use in parallel plate transmission lines

Omar

Graneau

Novac

et al. 2014

2014 17th International Symposium on Electromagnetic Launch Technology

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Section: E Initial High Current Testsmentioning

confidence: 99%

“…Following on from earlier work [1] this paper focusses on the development of the MIDOT sensor and its use in bespoke low and high voltage installations. Both the one and two dimensional computer models developed [2] are utilised to understand and also plan the MIDOT experiments.…”

Section: Introductionmentioning

confidence: 99%

A novel current density distribution sensor for use in parallel plate transmission lines

Omar

Graneau

Novac

et al. 2014

2014 17th International Symposium on Electromagnetic Launch Technology

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“…In the example below, the main AMPERE parameters [6] are: C = 129 µF, V 0 = 21.5 kV, R b = 8.8 mΩ, and L b = 650 nH. The exploding fuse is made from 50 µm thick aluminium foil, 85 mm wide and 300 mm long.…”

Section: Theoretical Calculations Compared To Experimental Datamentioning

confidence: 99%

“…The system termed AMPERE (Fig. 1) is fully described in [6], but for clarity the electromagnetic accelerator, part of a parallel-plate transmission line (historically termed a "strip" line), is presented in Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling of a Flyer Plate Electromagnetic Accelerator

Novac

Omar²,

Graneau³

et al. 2012

IEEE Trans. Plasma Sci.

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A joint program involving the study and practical performance of a foil-flyer electromagnetic accelerator has recently been initiated by Atomic Weapons Establishment, Aldermaston, and Loughborough University. As an initial phase of the work, both 0-D and 2-D numerical models for the foil-flyer accelerator have been developed. The 0-D model, although very crude, is capable of providing an insight into the accelerator phenomena and is currently used for parametric design studies. The 2-D model is based on the well-proven Loughborough filamentary modeling technique and is capable of accurately calculating the 2-D distribution of current, velocity, acceleration, and temperature of the flyer, together with the complete distribution of the magnetic and electric fields generated during a shot. The paper presents the two models and compares typical theoretical predictions with the corresponding experimental results.

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“…A complete run over 120 μs under Windows 7 on a laptop with an Intel Core i7 CPU @ 2.67 GHz with 4 GB RAM takes just 2 seconds. The most important data, the time dependence of the flyer velocity obtained using the heterodyne velocimetry technique [2], is compared in Fig. 6 with the 0D model prediction.…”

Section: -D Modelmentioning

confidence: 99%

Experimental and theoretical studies of a flyer plate electromagnetic accelerator

Novac

Omar²,

Graneau³

et al. 2012

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

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A common initiative for the research into the physics and technology of a flyer plate electromagnetic accelerator has been started at AWE, Aldermaston and Loughborough University. Two electromagnetic accelerators have been constructed and tested: AMPERE, a 120 kJ / 40 kV capacitor bank system at AWE and QUATTRO a 100 kJ/30 kV capacitor bank system at Loughborough Pulsed Power Laboratory. Two numerical models for simulating the foil-flyer accelerator have been developed: a 0-D anda 2-D. The 0-D model is providing a useful tool for designing and for parametric studies and the 2-D model for accurately calculating all the details of the accelerator such as: the velocity, acceleration and temperature of the flyer the current distribution and the overall distribution of the magnetic and electric fields generated during a shot. The paper will present the most relevant experimental data obtained during the first phase of the joint programme and compare it with theoretical predictions.

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Foil-flyer electro-magnetic accelerator initial results from a new AWE pulsed power generator

Cited by 5 publications

References 8 publications

A novel current density distribution sensor for use in parallel plate transmission lines

A novel current density distribution sensor for use in parallel plate transmission lines

Numerical Modelling of a Flyer Plate Electromagnetic Accelerator

Experimental and theoretical studies of a flyer plate electromagnetic accelerator

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