학술논문
Study of beam brightness in a radial extraction rf ion source with injected electrons
Document Type
Conference
Author
Source
IEEE Conference Record - Abstracts. 1991 IEEE International Conference on Plasma Science Plasma Science, 1991. IEEE Conference Record - Abstracts., 1991 IEEE International Conference on. :94-94 1991
Subject
Language
Abstract
This paper presents a study of beam brightness of a rf ion source of the radial extraction type. It is shown that the use of electron beam injection into the source's plasma improves beam brightness Bn possibly due to the decrease of electron temperature of the plasma. Analysis is also given of other factors which affect beam brightness such as aberration occuring in the extraction cathode lens which is reduced by use of thin lens together with proper shaping of the extraction electrode, and electron interaction with the ion beam to reduce space charge effect in the beam.