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Название: Investigation of the stability of the electron source with a multi-aperture plasma emitter generating a large cross-section electron beam
Авторы: Vorobyov, M. S.
Koval, Nikolay Nikolaevich
Sulakshin, S. A.
Shugurov, V. V.
Ключевые слова: электронный пучок; плазма; поперечное сечение
Дата публикации: 2015
Издатель: IOP Publishing
Библиографическое описание: Investigation of the stability of the electron source with a multi-aperture plasma emitter generating a large cross-section electron beam / M. S. Vorobyov [et al.] // Journal of Physics: Conference Series. — 2015. — Vol. 652 : Gas Discharge Plasmas and Their Applications (GDP 2015) : 12th International Conference, 6–11 September 2015, Tomsk, Russia : [proceedings]. — [012048, 5 p.].
Аннотация: An experiment was performed to investigate the electric strength of the high-voltage acceleration gap of an electron source with a multi-aperture plasma emitter generating a beam of large cross section (750•150 mm{2}) extracted into the atmosphere through a thin metal foil. It has been shown that the use of a mask in the plasma emitter which partitions the overall emission region to produce a plurality of small-cross-section beamlets, so that the extracted beam is a superposition of beamlets formed by individual emission units whose plasma boundary is stabilized by a fine metal grid, increases the electric strength of the high-voltage acceleration gap. This is of critical importance in cases where the electron source is operated in a repetitive pulse mode at high average power of the beam. In addition, an increase in the electric strength of the acceleration gap is promoted by that the modernized cathode assemblies of the plasma emitter are arranged normal to the axis along which electrons are extracted into the acceleration gap.
URI: http://earchive.tpu.ru/handle/11683/33826
Располагается в коллекциях:Материалы конференций

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