Composition of the gas atmosphere during the electron beam interaction with the alumina powder in the forevacuum pressure range

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Authors: Bakeev I. Yu., Zenin A. A., Tyunkov A. V., Klimov A. S.

Annotation: The results of the investigation of the composition of the gas atmosphere during the electron beam interaction with alumina powder in the forevacuum pressure range are presented. It is shown that during the beam interactions with the powder, there is an intensive outgassing from the particle surface. These gases are water vapor, helium, carbon dioxide, carbon monoxide or nitrogen. Thus, when the electron beam irradiation of alumina powder is performed, the spread of powder particles is carried out by intensive desorption of molecules adsorbed on the surfaces during location in the atmosphere.

Keywords: alumina, electron beam, forevacuum pressure range, outgassing