Персона: Скрипник, Александр Павлович
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Effect of the Electron-Emitter Parameters of a Pulsed Source of Light Penning Ions on the Extracted Current
2020, Stepanov, D. S., Skripnik, A. P., Shkol'nikov, E. Y., Степанов, Дмитрий Сергеевич, Скрипник, Александр Павлович, Школьников, Эдуард Яковлевич
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.Gas-filled neutron tubes generating pulses with specified parameters are needed for neutron well-logging. These parameters are affected most by the ion-pulse shape. The results of numerical modeling of the dynamics of the electron beam, secondary ions, and electrons generated in the volume of the Penning ion source with an electron emitter and their effect on the ion-pulse parameters are examined. The calculation was performed in an axisymmetric geometry with the aid of the KARAT software package. The physical processes occurring in the ion source and their influence on the growth of the ion current extracted from the plasma as a function of the maximum current of the injected electrons and the geometry of their source were analyzed. It was found that the steady-state ion current is independent of the electron current and is mostly due to the geometry and radius of the electron beam.
Technological Possibilities of Realization of Sealed Accelerator Tubes Based on Diodes with Magnetic Isolation
2020, Pleshakova, R. P., Ilyinskiy, A. V., Shikanov, E. A., Isaev, A. A., Kozlovskiy, K. I., Skripnik, A. P., Козловский, Константин Иванович, Скрипник, Александр Павлович
© 2020, Pleiades Publishing, Ltd.Abstract: Two technological schemes are considered, as well as the possibilities of their implementation for the manufacture of sealed accelerator tubes based on diodes with magnetic isolation Schematic designs of tubes under development with a laser source of deuterons and an electronic conductivity suppression system are presented. To do this, a sufficiently heat-resistant permanent magnet is included in the vacuum volume of the first tube. Another design of the tube contains a pulsed system for suppressing electronic conductivity using a pulsed magnetic field created by a conical spiral placed inside the tube.