Measuring the parameters of pulsed plasma flows by means of magnetic probes

Zhukeshov, A. M.; Baimbetov, F. B.; Amrenova, A. U.; Gabdullin, A. T.

doi:10.1134/s1810232807010067

Cited by 5 publications

(1 citation statement)

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“…В последние годы интерес к импульсным плазменным ускорителям опять возрос в связи с их технологическими возможностями [6][7][8]. Более современные исследования плазменных ускорителей связаны с использованием так называемых трасформеров, что позволило перевести их работу в квазистационарный режим [9].…”

Section: Introductionunclassified

Расчет И Анализ Электрофизических Процессов В Мощном Импульсном Ускорителе Плазмы С Собственным Магнитным Полем

Жукешов¹,

Амренова²,

Габдуллина³

et al. 2019

Журнал Технической Физики

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We have considered basic theoretical models describing various aspects of the formation and acceleration of plasma in pulsed accelerators. The discharge current, magnetic field, and plasma bunch velocity have been determined experimentally at different initial gas pressures in the accelerator chamber. We have considered the correspondence of some theoretical models of plasma acceleration to experimental data obtained in a KPU-30 coaxial accelerator. It is shown that the formation of the plasma in the coaxial accelerator depends on the plasma density, and acceleration processes at densities higher and lower than a certain transient density value on the order of 10^11–10^12 cm^–3 are different. At a density higher than this critical value, the plasma is accelerated by a magnetic force. At the same time, at a low plasma density, plasma can be accelerated by an internal electric field.

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Section: Introductionunclassified

Расчет И Анализ Электрофизических Процессов В Мощном Импульсном Ускорителе Плазмы С Собственным Магнитным Полем

Жукешов¹,

Амренова²,

Габдуллина³

et al. 2019

Журнал Технической Физики

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Plasma characteristics of a tapered coaxial gun and its damage effect on tungsten target

Zhao

et al. 2020

Fusion Engineering and Design

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Measurement of plasma stream velocity in a pulsed plasma accelerator

et al. 2019

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The measurement of plasma stream velocity in a coaxial pulsed plasma accelerator using two pairs of double plate probe (DPP) is reported in this article. The device produces a quasisteady type high velocity and high energy plasma stream for a duration of a few hundreds of microseconds. A simple arrangement of DPP with capacitor based biasing circuits was developed in-house which detected two different instances of plasma stream reaching the probe plates. This time interval gave the measure of plasma stream velocity using the known distance of separation between the probes. A spectroscopic study of the stream velocity was also performed to validate the findings of DPP. In this experiment, nitrogen and argon gases were considered as the operating medium. The velocities of Argon and Nitrogen were found to be (25 ± 1.5) km/s and (28.5 ± 0.5) km/s, respectively. The energy density of the plasma stream is calculated from the measured velocity, and it is found to be (0.8 ± 0.05) MJ/m2 for argon plasma and (0.3 ± 0.02) MJ/m2 for nitrogen plasma. The value of energy density is significant for studying fusion relevant plasma matter interaction.

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Measuring the parameters of pulsed plasma flows by means of magnetic probes

Cited by 5 publications

References 0 publications

Расчет И Анализ Электрофизических Процессов В Мощном Импульсном Ускорителе Плазмы С Собственным Магнитным Полем

Расчет И Анализ Электрофизических Процессов В Мощном Импульсном Ускорителе Плазмы С Собственным Магнитным Полем

Plasma characteristics of a tapered coaxial gun and its damage effect on tungsten target

Measurement of plasma stream velocity in a pulsed plasma accelerator

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