Thermionic Electron Beam Current and Accelerating Voltage Controller for Gas Ion Sources
Artykuł w czasopiśmie
MNiSW
100
Lista 2021
Status: | |
Autorzy: | Sikora Jarosław, Kania Bartosz, Mroczka Janusz |
Dyscypliny: | |
Aby zobaczyć szczegóły należy się zalogować. | |
Rok wydania: | 2021 |
Wersja dokumentu: | Drukowana | Elektroniczna |
Język: | angielski |
Numer czasopisma: | 8 |
Wolumen/Tom: | 21 |
Numer artykułu: | 2878 |
Strony: | 1 - 11 |
Impact Factor: | 3,847 |
Web of Science® Times Cited: | 3 |
Scopus® Cytowania: | 4 |
Bazy: | Web of Science | Scopus |
Efekt badań statutowych | NIE |
Finansowanie: | This research was supported by Lublin University of Technology, Lublin, Science fund No. FN-18/2021. |
Materiał konferencyjny: | NIE |
Publikacja OA: | TAK |
Licencja: | |
Sposób udostępnienia: | Witryna wydawcy |
Wersja tekstu: | Ostateczna wersja opublikowana |
Czas opublikowania: | W momencie opublikowania |
Data opublikowania w OA: | 20 kwietnia 2021 |
Abstrakty: | angielski |
Thermionic emission sources are key components of electron impact gas ion sources used in measuring instruments, such as mass spectrometers, ionization gauges, and apparatus for ionization cross-section measurements. The repeatability of the measurements taken with such instruments depends on the stability of the ion current, which is a function, among other things, of the electron beam current and electron accelerating voltage. In this paper, a laboratory thermionic electron beam current and accelerating voltage controller is presented, based on digital algorithm implementation. The average value of the percentage standard deviation of the emission current is 0.021%, and the maximum electron accelerating voltage change versus the emission current is smaller than 0.011% in the full operating range of the emission current. Its application as a trap current or emission current-regulated ion source power supply could be useful in many measuring instruments, such as in microelectromechanical system (MEMS) mass spectrometers as universal gas sensors, where a stable emission current and electron energy are needed. |