2020, Solodovnikov, A. A., Mamedov, N. V., Maslennikov, S. P., Yurkov, D. I., Мамедов, Никита Вадимович, Масленников, Сергей Павлович, Юрков, Дмитрий Игоревич

© 2020, Pleiades Publishing, Ltd.Abstract: For a Penning ion generator, the dependences of the amplitude–time characteristics of the discharge current and the extracted current on the intensity and configuration of the magnetic field are studied in a regime with pulsed voltage on the anode.

2019, Solodovnikov, A. A., Mamedov, N. V., Maslennikov, S. P., Yurkov, D. I., Мамедов, Никита Вадимович, Масленников, Сергей Павлович, Юрков, Дмитрий Игоревич

© 2019 IOP Publishing Ltd. All rights reserved.The paper presents the results of experiments studying the dependence of discharge and extracted currents on the pressure of pulsed penning ion source (PIS). A comparative analysis of the amplitude-time and current-voltage characteristics of PIS for the various anode voltage amplitudes, pulse repetition rates, pulse durations, magnitudes (and configurations) of the magnetic field is presented. The obtained results reveal the existence of different (stable and unstable) discharge modes depending on the operating conditions of the power supply system and the pressure range of the working gas (deuterium). The features of current waveforms in the transitional pressure range 0.5-2 mTorr are defined.

2019, Mamedov, N.V., Rohmanenkov, A.S., Zverev, V.I., Maslennikov, S.P., Yurkov, D.I., Мамедов, Никита Вадимович, Зверев, Владимир Игоревич, Масленников, Сергей Павлович, Юрков, Дмитрий Игоревич

In the present work, the results of the experimental and particle in cell (PIC) simulation studies of the discharge combustion modes in a miniature Penning ion source (PIS) under the pulse-periodic power supply conditions are presented. Dynamics of discharge ignition and discharge operation mode at a pulsed anode voltage supply are investigated for different values of anode voltage and gas pressure in various magnetic field configurations. Typical examples of current pulse waveforms are shown. Also, numerical simulations of the PIS were performed using 3D PIC combined with Monte Carlo collisions in the code VSim. Temporal dependencies of electron, ion, and potential distributions in the Penning cell are simulated. Differences between the numerical and experimental results are discussed. Published under license by AIP Publishing.

2020, Mamedov, N. V., Gubarev, A. V., Zverev, V. I., Maslennikov, S. P., Yurkov, D. I., Мамедов, Никита Вадимович, Зверев, Владимир Игоревич, Масленников, Сергей Павлович, Юрков, Дмитрий Игоревич

Magnetic field configuration for a miniature pulse Penning ion source was designed in this work. The amplitude-time characteristics of discharge and extracted currents were investigated as a function of gas pressure for various magnetic field magnitude and configuration An effect of magnetic field configuration on the Penning's discharge modes and characteristics of the extraction current impulse were experimentally shown. Stable operation modes of the ion source were found in this work. Also the appropriate ranges of working gas pressure and magnetic field configuration were demonstrated, at which the current pulse of the extracted ions had a quasi-rectangular form. For better understanding real magnetic fields distributions of within the discharge cell magnetic field have been calculated in COMSOL software.

2024, Lobov, M. S., Mamedov, I. M., Mamedov, N. V., Zverev, V. I., Yurkov, D. I., Мамедов, Никита Вадимович, Зверев, Владимир Игоревич, Юрков, Дмитрий Игоревич