Development of a plasma focus neutron source powered by an explosive magnetic generator

Ablesimov, V. E.; Andrianov, A. V.; Bazanov, A. A.; Glybin, A.M.; Dolin, Yu. N.; Drozdov, I. Yu.; Drozdov, Yu. M.; Duday, P. V.; Zimenkov, A. A.; Иванов, В. А.; Ivanovskii, A. V.; Kalinychev, A. E.; Karpov, G. V.; Kraev, A. I.; Lomtev, S. S.; Nudikov, V. N.; Pak, S.V.; Pozdov, N. I.; Polyushko, S. M.; Rybakov, A. F.; Skobelev, A.N.; Turov, A. N.; Fevralev, A. Yu.

doi:10.1134/s0021894415010137

Cited by 6 publications

(3 citation statements)

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“…In the experiment for the discharges presented in the table, where the peak of scattered neutrons is fixed (lines 1−5), this ratio varies from 11 to 48. Neutron yields in the experiments were as high as 1.1 • 10 11 neutrons per discharge [7]. From this it is easy to estimate the narrow beam yield for these discharges -it is ∼ 10 10 of neutrons per discharge with noticeable variation from discharge to discharge.…”

Section: Modeling the Sd Signal When Measuring Plasma Focus Emission ...mentioning

confidence: 85%

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Generation of narrowly focused radiation of neutrons in a plasma-focus discharge --- discovery and prospects of research

2022

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Analysis of the measurement results by scintillation detectors of the time dependence of the output of DD neutrons in a plasma-focus discharge indicates the generation of a narrowly directed neutron beam in the discharge. The quantitative characteristics of a narrowly directed neutron beam are estimated --- the output of neutrons in the beam, the duration of generation, and the angular divergence of the beam. To estimate the beam parameters, the Monte Carlo simulation of the features of the time dependence of the signal of the scintillation detector in the conditions of a closed space in which the measurements were carried out was carried out. Keywords: plasma focus, generation of DD neutrons, scintillation detectors, time-of-flight method, Monte Carlo method.

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Section: Modeling the Sd Signal When Measuring Plasma Focus Emission ...mentioning

confidence: 85%

“…In a study of the characteristics of the plasma focus chamber of the Meisser type described in work [7], the initial pressure of deuterium in the discharge chamber was 8 Torr (1 kPa). The capacitor battery was charged to a voltage of 38 kV.…”

Section: Introductionmentioning

confidence: 99%

Generation of narrowly focused radiation of neutrons in a plasma-focus discharge --- discovery and prospects of research

2022

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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%

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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