September 2009

Conference Paper

SNS Saddle Antenna H- Ion Source Project

By:
Dudnikov, Vadim; Johnson, Rolland; Dudnikova, Galina; Stockli, Martin P; Welton, Robert F
Journal Name:
Review of Scientific Instruments
Page Number:
02A709-1-02A709-3
Volume:
81
Issue Number:
2
Publication Date:
September 2009
Conference Name:
13th International Conference on Ion Sources
Conference Location:
Gatlinburg, Tennessee, United States of America
Conference Sponsor:
ORNL

Abstract

In this project we are developing an H- source, which will synthesize the most important developments in the field of negative ion sources to provide high current, high brightness, good lifetime, high reliability, and high power efficiency. We describe two planned modifications to the present SNS external antenna source in order to increase the plasma density near the output aperture: 1) replacing the present 2 MHz plasma-forming solenoid antenna with a 60 MHz saddle-type antenna and 2) replacing the permanent multicusp magnetic system with a weaker electro-magnet.


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