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Cascade Acceleration of a Picosecond Runaway Electron Bunch at Atmospheric Pressure.

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Title: Cascade Acceleration of a Picosecond Runaway Electron Bunch at Atmospheric Pressure.
Authors: Zubarev, N. M.1,2 (AUTHOR), Lobanov, L. N.1 (AUTHOR) lobanov@iep.uran.ru, Mesyats, G. A.1,2 (AUTHOR), Sadykova, A. G.1 (AUTHOR), Sharypov, K. A.1 (AUTHOR), Shpak, V. G.1 (AUTHOR), Shunailov, S. A.1 (AUTHOR), Yalandin, M. I.1,2 (AUTHOR)
Source: Plasma Physics Reports. Mar2026, Vol. 52 Issue 3, p357-366. 10p.
Subjects: Particle acceleration, Electron beams, Particle beam bunching, Atmospheric pressure, Magnetic fields, Electron kinetic energy
Abstract: A method and experimental results are presented for the accelerating a magnetized picosecond bunch of runaway electrons in two consecutive atmospheric gaps to which unipolar voltage pulses with amplitudes up to –250 kV and durations of 0.5–1 ns are supplied. The synchronization precision of the pulses is comparable to their leading-edge duration (~100 ps). The gaps are separated by a drift tube whose length is limited by electron energy losses in collisions with gas molecules. If the bunch electrons that have a kinetic energy of ≈250 keV after passing through the first gap and drift tube are accelerated in the second gap at the amplitude voltage, their energy nearly doubles. After both acceleration cycles with intermediate drift, the bunch that has travelled in a strong longitudinal magnetic field a total distance of ≈12 cm maintains the tubular structure imposed by the cathode shape. [ABSTRACT FROM AUTHOR]
Copyright of Plasma Physics Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Cascade Acceleration of a Picosecond Runaway Electron Bunch at Atmospheric Pressure.
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  Data: <searchLink fieldCode="JN" term="%22Plasma+Physics+Reports%22">Plasma Physics Reports</searchLink>. Mar2026, Vol. 52 Issue 3, p357-366. 10p.
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  Data: A method and experimental results are presented for the accelerating a magnetized picosecond bunch of runaway electrons in two consecutive atmospheric gaps to which unipolar voltage pulses with amplitudes up to –250 kV and durations of 0.5–1 ns are supplied. The synchronization precision of the pulses is comparable to their leading-edge duration (~100 ps). The gaps are separated by a drift tube whose length is limited by electron energy losses in collisions with gas molecules. If the bunch electrons that have a kinetic energy of ≈250 keV after passing through the first gap and drift tube are accelerated in the second gap at the amplitude voltage, their energy nearly doubles. After both acceleration cycles with intermediate drift, the bunch that has travelled in a strong longitudinal magnetic field a total distance of ≈12 cm maintains the tubular structure imposed by the cathode shape. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Plasma Physics Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Particle beam bunching
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      – SubjectFull: Atmospheric pressure
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              Text: Mar2026
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