Advanced RF-driven H- ion sources at the SNS

R. F. Welton; M. P. Stockli; S. N. Murray; T. R. Pennisi; B. Han; Y. Kang; R. H. Goulding; D. W. Crisp; N. P. Luciano; J. R. Carmichael; J. Carr

doi:10.1109/PAC.2007.4439908

Advanced RF-driven H^- ion sources at the SNS

R. F. Welton
, M. P. Stockli
, S. N. Murray
, T. R. Pennisi
, B. Han
, Y. Kang
, R. H. Goulding
, D. W. Crisp
, N. P. Luciano
, J. R. Carmichael
, J. Carr

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

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.

Original language	English
Title of host publication	Proceedings of the IEEE Particle Accelerator Conference, PAC07
Pages	3774-3776
Number of pages	3
DOIs	https://doi.org/10.1109/PAC.2007.4439908
State	Published - 2007
Externally published	Yes
Event	IEEE Particle Accelerator Conference, PAC07 - Albuquerque, NM, United States Duration: Jun 25 2007 → Jun 29 2007

Publication series

Name	Proceedings of the IEEE Particle Accelerator Conference

Conference

Conference	IEEE Particle Accelerator Conference, PAC07
Country/Territory	United States
City	Albuquerque, NM
Period	06/25/07 → 06/29/07

Access to Document

10.1109/PAC.2007.4439908

Cite this

Welton, R. F., Stockli, M. P., Murray, S. N., Pennisi, T. R., Han, B., Kang, Y., Goulding, R. H., Crisp, D. W., Luciano, N. P., Carmichael, J. R., & Carr, J. (2007). Advanced RF-driven H^- ion sources at the SNS. In Proceedings of the IEEE Particle Accelerator Conference, PAC07 (pp. 3774-3776). Article 4439908 (Proceedings of the IEEE Particle Accelerator Conference). https://doi.org/10.1109/PAC.2007.4439908

@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",

}

Welton, RF, Stockli, MP, Murray, SN, Pennisi, TR, Han, B, Kang, Y, Goulding, RH, Crisp, DW, Luciano, NP, Carmichael, JR & Carr, J 2007, Advanced RF-driven H^- ion sources at the SNS. in Proceedings of the IEEE Particle Accelerator Conference, PAC07., 4439908, Proceedings of the IEEE Particle Accelerator Conference, pp. 3774-3776, IEEE Particle Accelerator Conference, PAC07, Albuquerque, NM, United States, 06/25/07. https://doi.org/10.1109/PAC.2007.4439908

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T1 - Advanced RF-driven H- ion sources at the SNS

AU - Welton, R. F.

AU - Stockli, M. P.

AU - Murray, S. N.

AU - Pennisi, T. R.

AU - Han, B.

AU - Kang, Y.

AU - Goulding, R. H.

AU - Crisp, D. W.

AU - Luciano, N. P.

AU - Carmichael, J. R.

AU - Carr, J.

PY - 2007

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N2 - 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.

AB - 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.

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