IPAC2015 - List of Authors (Maxwell, D.G.)

Paper	Title	Page
MOPWI026	Transverse Matching of Horizontal-Vertical Coupled Beams for the FRIB Linac	1211
	Y. Zhang, P. Chu, Z.Q. He, S.M. Lund, D.G. Maxwell FRIB, East Lansing, Michigan, USA
	Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 FRIB driver linac will deliver all heavy ion beams up to uranium with energy above 200 MeV/u, and maximum beam power on target 400 kW for nuclear physics research. Strong horizontal-vertical beam coupling exists in the FRIB linac since superconducting solenoids are applied to focus multi charge state beams. Further, the FRIB low beta SRF cavities have raised quadrupole field components. The combined effects make beam transverse matching challenging. In this paper, we study transverse matching of horizontal-vertical coupled beams based on beam profile measurements with multiple wire scanners. There are multiple solutions for the initial linac beams with coupling, and errors of the beam diagnostics and magnet power supplies introduce further complication. Nonetheless, simulation studies show that satisfactory transverse matching can be achieved with proper linac beam tuning.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI026
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MOPWI027	Open XAL Control Room Experience	1214
	C.P. Chu, D.G. Maxwell, Y. Zhang FRIB, East Lansing, Michigan, USA C.K. Allen, T.A. Pelaia II, A.P. Shishlo ORNL, Oak Ridge, Tennessee, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy under Cooperative Agreement DE-SC0000661 and DE-AC05-00OR22725, the State of Michigan and Michigan State University. This paper reports the control room experience, lessons learned, and quick deployment approach for the Open XAL application environment. Open XAL is a java-based framework for building high-level accelerator applications, it is a major revision of the XAL framework which was developed at the Spallation Neutron Source (SNS). Open XAL is site neutral and may be deployed at multiple accelerator facilities. Currently, Open XAL is installed at SNS and at the Re-Accelerator facility of Michigan State University. At SNS we are in the final process of replacing the old XAL environment with Open XAL; we describe the upgrade process and our accelerator operations experience using Open XAL. At Michigan State, Open XAL has been tested during a cryomodule commissioning and result will be shown.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI027
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MOPWI050	Open XAL Status Report 2015	1270
	T.A. Pelaia II, C.K. Allen, A.P. Shishlo, A.P. Zhukov ORNL, Oak Ridge, Tennessee, USA Y.-C. Chao, C. Gong, F.W. Jones, R. Newhouse TRIUMF, Vancouver, Canada P. Chu, D.G. Maxwell, Y. Zhang FRIB, East Lansing, Michigan, USA R. Fearn, L. Fernández, E. Laface, M. Muñoz ESS, Lund, Sweden J.M. Freed University of South Carolina, Columbia, USA P. Gillette, P. Laurent, G. Normand GANIL, Caen, France H.R. Hale University of Tennessee, Knoxville, USA Y. Li IHEP, Beijing, People's Republic of China I. List, M. Pavleski Cosylab, Ljubljana, Slovenia P. Scruggs East Tennessee State University, Johnson City, USA
	Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725 Open XAL is an accelerator physics software platform developed in collaboration among several facilities around the world. The Open XAL collaboration was formed in 2010 to port, improve and extend the successful XAL platform used at the Spallation Neutron Source for use in the broader accelerator community and to establish it as the standard platform for accelerator physics software. The site-independent core is complete, active applications have been ported, and now we are in the process of verification and transitioning to using Open XAL in production. This paper will present the current status and a roadmap for this project.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI050
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Paper

Title

Page

Transverse Matching of Horizontal-Vertical Coupled Beams for the FRIB Linac

1211

Y. Zhang, P. Chu, Z.Q. He, S.M. Lund, D.G. Maxwell
FRIB, East Lansing, Michigan, USA

Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
FRIB driver linac will deliver all heavy ion beams up to uranium with energy above 200 MeV/u, and maximum beam power on target 400 kW for nuclear physics research. Strong horizontal-vertical beam coupling exists in the FRIB linac since superconducting solenoids are applied to focus multi charge state beams. Further, the FRIB low beta SRF cavities have raised quadrupole field components. The combined effects make beam transverse matching challenging. In this paper, we study transverse matching of horizontal-vertical coupled beams based on beam profile measurements with multiple wire scanners. There are multiple solutions for the initial linac beams with coupling, and errors of the beam diagnostics and magnet power supplies introduce further complication. Nonetheless, simulation studies show that satisfactory transverse matching can be achieved with proper linac beam tuning.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI026

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPWI027

Open XAL Control Room Experience

1214

C.P. Chu, D.G. Maxwell, Y. Zhang
FRIB, East Lansing, Michigan, USA
C.K. Allen, T.A. Pelaia II, A.P. Shishlo
ORNL, Oak Ridge, Tennessee, USA

Funding: This material is based upon work supported by the U.S. Department of Energy under Cooperative Agreement DE-SC0000661 and DE-AC05-00OR22725, the State of Michigan and Michigan State University.
This paper reports the control room experience, lessons learned, and quick deployment approach for the Open XAL application environment. Open XAL is a java-based framework for building high-level accelerator applications, it is a major revision of the XAL framework which was developed at the Spallation Neutron Source (SNS). Open XAL is site neutral and may be deployed at multiple accelerator facilities. Currently, Open XAL is installed at SNS and at the Re-Accelerator facility of Michigan State University. At SNS we are in the final process of replacing the old XAL environment with Open XAL; we describe the upgrade process and our accelerator operations experience using Open XAL. At Michigan State, Open XAL has been tested during a cryomodule commissioning and result will be shown.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI027

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPWI050

Open XAL Status Report 2015

1270

T.A. Pelaia II, C.K. Allen, A.P. Shishlo, A.P. Zhukov
ORNL, Oak Ridge, Tennessee, USA
Y.-C. Chao, C. Gong, F.W. Jones, R. Newhouse
TRIUMF, Vancouver, Canada
P. Chu, D.G. Maxwell, Y. Zhang
FRIB, East Lansing, Michigan, USA
R. Fearn, L. Fernández, E. Laface, M. Muñoz
ESS, Lund, Sweden
J.M. Freed
University of South Carolina, Columbia, USA
P. Gillette, P. Laurent, G. Normand
GANIL, Caen, France
H.R. Hale
University of Tennessee, Knoxville, USA
Y. Li
IHEP, Beijing, People's Republic of China
I. List, M. Pavleski
Cosylab, Ljubljana, Slovenia
P. Scruggs
East Tennessee State University, Johnson City, USA

Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725
Open XAL is an accelerator physics software platform developed in collaboration among several facilities around the world. The Open XAL collaboration was formed in 2010 to port, improve and extend the successful XAL platform used at the Spallation Neutron Source for use in the broader accelerator community and to establish it as the standard platform for accelerator physics software. The site-independent core is complete, active applications have been ported, and now we are in the process of verification and transitioning to using Open XAL in production. This paper will present the current status and a roadmap for this project.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI050

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)