Publication Type
Conference Paper
Book Title
Negative Ions, Beams, and Sources
Publication Date
Page Numbers
223 to 235
Volume
1097
Publisher Location
Melville, New York, United States of America
Conference Name
First Conference on Negative Ions Beams, and Sources
Conference Location
Aix-en-Provence, France
Conference Date
-
Abstract
LBNL designed and built the Frontend for the Spallation Neutron Source, including its H- source and Low-Energy Beam Transport (LEBT). This paper discusses the performance of the H- source and LEBT during the commissioning of the accelerator, as well as their performance while ramping up the SNS beam power to 540 kW. Detailed discussions of major shortcomings and their mitigations are presented to illustrate the effort needed to take even a well-designed R&D ion source into operation. With these modifications, at 4% duty factor the LBNL H- source meets the essential requirements that were set at the beginning of the project.
