title: [Increasing the anode characteristics of sharp-focused Coolidge X-ray tubes by changing from a high to a low vacuum].
abstract: The anode characteristics of up-to-date sharp-focused Coolidge X-ray tubes are analyzed. The reason for differences in the real anode characteristics from theoretical ones has been found to be a higher tube gas pressure than that accepted. There is evidence that there are new third-class X-tubes--electronic tubes with compensation for negative volumetric charge of electrons with positive gas ions.
authors.forename: V B
authors.initials: VB
authors.lastname: Kanikovskiĭ
mesh_terms: D002412:Cations; D004566:Electrodes; D004867:Equipment Design; D005740:Gases; D008962:Models, Theoretical; D011312:Pressure; D011859:Radiography / Q000295:instrumentation*; D013679:Technology, Radiologic; D014618:Vacuum
chemical_list: D002412:Cations; D005740:Gases