@inproceedings{eafb5d22d05d4a60bf7fd578fe317c89,
title = "Advanced RF-driven H- ion sources at the SNS",
abstract = "The US Spallation Neutron Source* (SNS), will require substantially higher average and pulse H- beam current than can be produced from conventional H- ion sources such as the baseline LBNL-SNS source. H- currents of 70-100 mA with an RMS emittance of 0.20-0.35 π mm mrad and a ∼7% duty-factor will be needed for the SNS power upgrade project in 2010. We are therefore investigating several advanced ion source concepts based on RF plasma excitation. First, a generalized discussion of our source development strategy is presented as well as the performance characteristics of a large-plasma-volume, external antenna source based on an Al2O 3 plasma chamber. The design and results of computational modeling of a high-power version of this source featuring an AlN plasma chamber is subsequently discussed as well as a high-efficiency extraction system necessary for high-current operation.",
author = "Welton, {R. F.} and Stockli, {M. P.} and Murray, {S. N.} and Pennisi, {T. R.} and B. Han and Y. Kang and Goulding, {R. H.} and Crisp, {D. W.} and Luciano, {N. P.} and Carmichael, {J. R.} and J. Carr",
year = "2007",
doi = "10.1109/PAC.2007.4439908",
language = "English",
isbn = "1424409179",
series = "Proceedings of the IEEE Particle Accelerator Conference",
pages = "3774--3776",
booktitle = "Proceedings of the IEEE Particle Accelerator Conference, PAC07",
note = "IEEE Particle Accelerator Conference, PAC07 ; Conference date: 25-06-2007 Through 29-06-2007",
}