Sikora, J.Toborek, K.Szczepaniak, L.2016-01-212016-01-212004Sikora J. Emission current stabilizer to electron-impact gas ion sources / J. Sikora, K. Toborek, L. Szczepaniak // Вісник Національного університету «Львівська політехніка». – 2004. – № 510 : Елементи теорії та прилади твердотілої електроніки. – С. 112–114. – Bibliography: 4 titles.https://ena.lpnu.ua/handle/ntb/31098We describe an electron emission current stabilizer with an error amplifier dc voltage gain depending on the electron emission current. A negative feedback loop of the error amplifier contains a solid-state digital potentiometer, which is controlled by a microprocessor according to the empirically determined (based on the Ziegler - Nichols method) exponential dc voltage gain function. The obtained mean relative standard deviation of the electron emission current, for a tungsten filament operated at the pressure of/?=0.1Pa, is 36 ppm.enEmission current stabilizer to electron-impact gas ion sourcesArticle