Movement of Melt Metal Layer Under Conditions Typical for Transient Events in Iter

Poznyak, I. M.; Safronov, V.M.; Zybenko, V. Yu .

doi:10.21517/0202-3822-2016-1-15-21

Cited by 2 publications

(2 citation statements)

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“…Research of the physical and technical basis of sources for the generation of super-power electromagnetic fields and current pulses with the help of explosion-magnetic generators (EMG), outlined in classical works [1,2], found a continuation in new problems for plasma loads. Among the common problems we can note the following: pulsed plasma accelerator (PPA) [3][4][5], plasma focus [6], modeling and study of the dynamics of plasma jets in the ionosphere [7], high-current plasma interrupters [8,9], the generation of X-ray radiation [10], and studies of erosion of metal samples under the influence of intense plasma flows created by the PPA [11]. All of these areas have special requirements for the energy source, forming a pulsed current to generate a plasma flow with the necessary parameters.…”

Section: Introductionmentioning

confidence: 99%

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Pulse-Current Sources for Plasma Accelerators

et al. 2018

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The pulse source for plasma-accelerators supply operates under the conditions of nonlinear growth of load inductance, which complicates the matching of the source and the load. This article presents experimental studies of the use of both traditional pulse-energy sources based on capacitive storage and alternative ones based on explosive magnetic generators (EMG). It is shown that the EMG with the special device of the current-pulse formation more effectively matches with such a plasma load as the pulse plasma-accelerator (PPA). This device allows a wide range to manage the current-pulse formation in a variable load and, consequently, to optimize the operation of the power source for the specific plasma load. A mathematical model describing the principle of operation of this device in EMG on inductive load was developed. The key adjustable parameters are the current into the load, the residual inductance of the EMG, and the sample time of the specified inductance and the final current in the load. The device was successfully tested in experiments with the operation on both one and two accelerators connected in parallel. In the experiments, the optimal mode of device operation was found in which the total energy inputted to a pair of accelerators in one pulse reached 0.55 MJ, and the maximum current reached about 3.5 MA. A comparison with the results of experiments performed with capacitive sources of the same level of stored energy is given. The experiments confirmed not only the principal possibility of using EMG with a special device of current-pulse formation for operation with plasma loads in the MJ energy range but also showed the advantages of its application with specific types of plasma load.

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Section: Introductionmentioning

confidence: 99%

“…11, 3057 5 of 12 transformation made it possible to calculate the high-frequency inductance for each position of the liner. The dynamics of the liner movement was set manually.…”

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confidence: 99%