L. N. Lobanov, K. A. Sharypov, V. G. Shpak, S. A. Shunailov, M. R. Ulmaskulov, M. I. Yalandin
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Abstract
We consider the cascade acceleration of subnanosecond electron beams. A brief review is given of experiments with coaxial diodes in which the electron emission and acceleration processes occur in two successive gaps. An experiment on the emission of runaway electrons in a gas diode of this configuration gave rise to a study of magnetically insulated explosive emission vacuum diodes. It has been demonstrated that in this type of diode the spread in energies of electrons emitted within the rise time of the accelerating pulse can be significantly reduced. A numerical simulation has shown that the energy of the electrons of a high-current beam increases if they are accelerated in the successive gaps, formed by a drift tube and powered with precisely timed voltage pulses, generated by independent RADAN-type sources.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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