Title from the title-page.

[References: p. 104 (2 tit.)]

Electron beams with high current density j > 20 A/cm2 present a great interest because of its capacity to transport storage energy through rather long distances to impacted object without any noticeable losses. Besides it is possible to control the beam parameters by means of external filled and additional external conditions of transporting. In this work the theoretical investigation of transporting and focusing of electron beam propagating in drift tube filled with low pressure air 10-2 ÷ 10-4 Torr in proper and external fields is presented. It was obtain that the heterogeneity of external magnetic field have noticeable role in transporting of electrons beam compensated by charge. It was shown that changing of magnetic field value and its gradient can be governed by density of the beam current on collector and by energy distribution of electrons.

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