Please use this identifier to cite or link to this item:
Title: Positively charged electron beams
Authors: Martens, V. Y.
Мартенс, В. Я.
Keywords: Electron beams;Space charge;Gas ionization;Ions;Overcompensation;Secondary electrons
Issue Date: 2022
Publisher: Elsevier Ltd
Citation: Martens, V.Y. Positively charged electron beams // Vacuum. - 2022. - Том 203. - Номер статьи 111319. - DOI10.1016/j.vacuum.2022.111319
Series/Report no.: Vacuum
Abstract: A condition has been found for a positively charged electron beam to be formed when secondary electrons, knocked out by the beam electrons from the collector, are present in the drift space. Two types of axially symmetric positively charged electron beams have been experimentally investigated: beams with the current density maximum located at the axis of the drift tube and beams with the current density maximum located at a distance from the axis. Estimates based on measurements of the radial potential distribution in the drift tube have shown that the excess positive ion charge created in the second case should be three times that in the first case. This can be explained by the accumulation of ions in the potential well formed inside an axially symmetric electron beam of the second type.
Appears in Collections:Статьи, проиндексированные в SCOPUS, WOS

Files in This Item:
File Description SizeFormat 
scopusresults 2274 .pdf
  Restricted Access
1.77 MBAdobe PDFView/Open
WoS 1429 .pdf
  Restricted Access
104.02 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.