Technical Physics Letters
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Transport of an electron beam generated in a Plyutto-Luce diode through a vacuum channel
Glumac P.
1, Zhuravlev M. V.
1, Bukharkin A. A
1, Kurapov G. N.
1, Khertek R. K.
1, Remnev G. E.
1
1Tomsk Polytechnic University, Tomsk, Russia
Email: gp05@tpu.ru, zhuravlev@tpu.ru, ater@tpu.ru, kurapov@tpu.ru, rkk6@tpu.ru, remnev@tpu.ru
The article discusses the results of an experimental study on the transport of a high-current electron beam generated in the Plyutto-Luce diode (27 kA, 270 kV, 90 ns) and transported via a 90 mm diameter vacuum channel at the pressure of 2· 10-4 Torr. The electron beam current was recorded at different distances (20-150 cm) from the diode system. There were detected a delay in the electron beam arrival, which depended on the distance to the diode, and a smooth decrease in the total charge transferred by the beam, which correlated with the delay time. The beam propagated over a distance of up to 150 cm; the beam with current significantly exceeding the limiting current in vacuum propagated over 55 cm. Keywords: high-current electron beam, Plyutto-Luce diode, beam transport, limiting vacuum current, space charge compensation.
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