Field evaporation ion sources based on some binary alloys

摘要

Results of experiments aimed at the creation of ion sources employing alloys as materials for field emitters are presented. Using even simple alloys it is possible to obtain ion sources for elements, from which it is difficult or impossible to make emitter directly. Using emitter surface enrichment of some component it is possible to obtain an ion source even if the content of this element is as low as fractions of a percent.