Oxygen ion source of duoplasmatron type: R Hentschel, D Henke...
Oxygen ion source of duoplasmatron type: R Hentschel, D Henke and U Kreissig, Academy of Science of GDR, Central Institute for Nuclear Research, Rossendorf, GDRdoi:10.1016/0042-207X(89)91138-XELSEVIERVacuum