학술논문
Directly heated lanthanum hexaboride filaments
Document Type
Journal Article
Author
Source
Rev. Sci. Instrum.; (United States); 55:7
Subject
Language
English
Abstract
Some physical properties of lanthanum hexaboride filaments, when operated as cathodes in a gas discharge, are presented. These directly heated hairpin-shaped filaments have been tested in different types of ion sources and are shown to be capable of long-pulse or cw discharge operations. The design of a shaped lanthanum hexaboride filament for the purpose of further extension of lifetime is also described.