Trapping secondary electrons in ExB drift for an alpha generating penning ion source

Autor:	N Savard, A Groutso, S Melanson, D Potkins, M Dehnel
Rok vydání:	2022
Předmět:	History Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 2244:012104
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2244/1/012104
Popis:	A Penning ion source test stand has been developed by D-Pace to characterize alpha ion extraction from a helium discharge with variations in: extraction potential up to 15 kV, gas flow rate up to 30 sccm, and magnetic field confinement up to 1.1 Tesla. A brief summary of the Penning ion source design is described. Attempts at extraction of ions leads to severe sparking events on the high voltage insulator due to ExB drifts of secondary electrons. This paper shows the design of two sets of electrodes which together trap most electrons moving towards this insulator due to ExB drifts. This eliminates the severe high voltage breakdown on the insulator and allows for a more robust operation of the ion source.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8353ab668733fc31d721c5504210a76a https://doi.org/10.1088/1742-6596/2244/1/012104 Zobrazit plný text záznamu