M. A. Belyaev, M. A. Gashkov, M. I. Yalandin, N. M. Zubarev, O. V. Zubareva
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引用次数: 0
Abstract
The conditions of electron runaway in an air gap with an inhomogeneous electric field caused by using a needle cathode are analyzed. Significant differences in the behavior of electrons have been revealed for different degrees of inhomogeneity of the field distribution provided by varying the radius of the needle tip. In a weakly inhomogeneous field (the radius of the tip exceeds a certain threshold), electrons are continuously accelerated throughout the gap. In a strongly inhomogeneous field (the tip radius is relatively small), electrons can reach maximum energy inside the gap and then begin to slow down in the near-anode region. The difference in the dynamics of free electrons leads to the need to use different, local or non-local, conditions for their runaway.
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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