The Los Alamos Flux Compression Program From Its Origin

Fowler, C.M.; Caird, R.S.; Garn, W.B.; Thomson, D.B.

doi:10.2172/4598574

Cited by 5 publications

(3 citation statements)

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“…Work done by the conductors moving against the magnetic field results in an increase in the electromagnetic energy. [2] Various types of flux compression generators have been developed and tested during the past five decades. The most successful of them is the helical flux compression generator (HFCG) which is capable of producing a high energy output into large impedance loads, just as is needed for a practical pulsed power source.…”

Section: Introductionmentioning

confidence: 99%

Calculation of time-varying equivalent inductance and resistance of helical flux compression generators using the 2D filamentary method and dynamic matrix concept in the frequency domain

2010

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In this paper we present an approach to calculate the time-varying equivalent inductance and resistance of helical flux compression generators accurately. This approach is based on the 2D filamentary method and uses the dynamic matrix concept. By using this method, it is possible to consider both the effects of the armature presence and frequency on the inductance and resistance of the HFCGs. The latter effect has not been discussed in previous open literature. The validation of the presented method has been verified by measurement results.

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Section: Introductionmentioning

confidence: 99%

Calculation of time-varying equivalent inductance and resistance of helical flux compression generators using the 2D filamentary method and dynamic matrix concept in the frequency domain

2010

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“…Because it can produce high current (10 2 MA), high energy (tenths MJ) and strong magnetic field (10 3 T) in a small volume (cm 3 ), its applications are very attractive in the field of plasma physics, high energy density physics and high power pulse source etc [1] .…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of explosive high power pulse source

Xie¹,

Sun²,

Hao³

et al. 2007

2007 16th IEEE International Pulsed Power Conference

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This paper describes the designs and experimental investigation of indirectly charged two stage helical explosive magnetic flux compression generator (MFCG), pulsed power conditioning system with explosive metal wire array opening switch and the combined experimental results of the two systems above. This MFCG can generate high current (115kA) on comparatively high inductance inductor (4.5µH). The length of current pulse (from zero to the biggest) on the inductor is about 10µs. Energy gain of the MFCG is greater than 30 times. Combined experiment of the two system shows that more than 25GW of high power pulse can be reached on 10Ωload resistor, and width of the pulse is more than 150ns. The experiment shows that the systems of which we studied are very successful and practical in producing high power pulse for MFCG.

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“…The acceleration of metallic bodies by electromagnetic induction is probably as old as the first fast capacitordischarge experiments and early examples may even have been generated accidentally. Serious studies of hypervelocity launchers began in the late 1950s and the early 1960s, while at the same time plate-type accelerators were being used in the development of flux-compression systems [1]. Since then, inductively driven devices have been suggested for a wide range of other applications ( [2] and the references therein), and implemented for electromagnetic metal forming, electrically driven hammers and presses, materials testing under high loading or high speed impact, aerodynamic flight, outer space usage for satellite propulsion and meteorite impact investigations, fast electrical actuators, induction-reaction engines and weaponry.…”

Section: Introductionmentioning

confidence: 99%

Studies of a very high efficiency electromagnetic launcher

Novac

Smith

Enache

et al. 2002

J. Phys. D: Appl. Phys.

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This paper describes the culmination of a research activity intended to demonstrate unequivocally that in a launcher, electrostatic to kinetic energy conversion can be achieved with an efficiency exceeding 50%. Two numerical models are presented, with the first of these being a fast and simple method of establishing the optimum launcher design. The second model is based on detailed filamentary considerations, and for the first time highlights the various factors that limit the global efficiency. Results from the detailed modelling are shown to be in very good agreement with experimentally obtained data.

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The Los Alamos Flux Compression Program From Its Origin

Cited by 5 publications

References 0 publications

Calculation of time-varying equivalent inductance and resistance of helical flux compression generators using the 2D filamentary method and dynamic matrix concept in the frequency domain

Calculation of time-varying equivalent inductance and resistance of helical flux compression generators using the 2D filamentary method and dynamic matrix concept in the frequency domain

Experimental investigation of explosive high power pulse source

Studies of a very high efficiency electromagnetic launcher

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