Abstract
Surface charges at the glassy or metallized but isolated inner walls of differently sized diodes are investigated as dependent upon different conditions (vacuum, inner geometry, electric operational conditions). For this purpose, a special condenser discharge method is used which gives the opportunity to study under well known conditions the temporal behaviour of those surface charges caused by electrical fields from outside the tube changing with time. One gets informations concerning the transport of positive ions and of electrons within such tubes in respect to the different kinds of wall material. The conditions are given for origin and maintenance of a stable positive wall potential above 150 V. In this case, the ratio of the electron current from the cathode to the wall and to the anode respectively comes out as ascending from 0.3 to 0.7 for a variation of the anode current from 200 to 900 μA, as one finds by comparing observations of a desorption effect stimulated by the electron current to the wall.
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Herrn Professor Dr. F.Kirchner zum 70. Geburtstag gewidmet.
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Jahrreiss, H., Eckertová, L. Zur Entstehung von Oberflächenladungen im Zusammenhang mit Ionentransport- und Sekundärelektronenemissionserscheinungen. Z. Physik 199, 98–117 (1967). https://doi.org/10.1007/BF01326019
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DOI: https://doi.org/10.1007/BF01326019