Generation of Diffuse Jets and Runaway Electron Beams in Air, SF6, and Helium at Low Pressures


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Nanosecond discharges in air, SF6, and helium at pressures of units–tens of Torr are studied. Spatial inhomogeneities of diffuse jets and autographs of runaway electron (RAE) beams are recorded in all three gases during a discharge in a nonuniform electric field. It is shown that diffuse jets change their shape and their lengths increase and change from pulse to pulse in the discharge gap as the pressure decreases; further, it is confirmed that the RAE beam amplitude increases as the gas pressure decreases. It is assumed that inhomogeneities observed in the diffuse jets and RAE beams can be associated with transient luminous events in the Earth’s atmosphere that have sizes of tens of kilometers and occur at high altitudes at low pressures under high thunderstorm activity.

作者简介

A. Burachenko

Institute of High-Current Electronics, Siberian Branch

Email: VFT@loi.hcei.tsc.ru
俄罗斯联邦, Tomsk, 634055

V. Tarasenko

Institute of High-Current Electronics, Siberian Branch

编辑信件的主要联系方式.
Email: VFT@loi.hcei.tsc.ru
俄罗斯联邦, Tomsk, 634055

I. Kostyrya

Institute of High-Current Electronics, Siberian Branch

Email: VFT@loi.hcei.tsc.ru
俄罗斯联邦, Tomsk, 634055

E. Baksht

Institute of High-Current Electronics, Siberian Branch

Email: VFT@loi.hcei.tsc.ru
俄罗斯联邦, Tomsk, 634055

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