HB2016 - List of Authors (Cousineau, S.M.)

Paper

Title

Page

A Fifteen Year Perspective on the Design and Performance of the SNS Accelerator

9

S.M. Cousineau
ORNL, Oak Ridge, Tennessee, USA

Commissioning of the Spallation Neutron Source accelerator began approximately fifteen years ago. Since this time, the accelerator has broken new technological ground with the operation of the world’s first superconducting H⁻ linac, the first liquid mercury target, and 1.4 MW of beam power. This talk will reflect on the issues and concerns that drove key decisions during the design phase, and will consider those decisions in the context of the actual performance of the accelerator. Noteworthy successes will be highlighted and lessons-learned will be discussed. Finally, a look forward toward the challenges associated with a higher power future at SNS will be presented.

Slides MOAM4P40 [8.952 MB]

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TUPM8X01

First results of laser-assisted H⁻ stripping of a 10 us, 1 GeV beam at the SNS accelerator

S.M. Cousineau
ORNL, Oak Ridge, Tennessee, USA

Laser-assisted H⁻ stripping has been successfully performed for a 10 us, 1 GeV H⁻ beam at the SNS accelerator. Here we discuss the configuration of the experiment, the associated challenges, and the final results including stripping efficiencies and parameter sensitivities.

Slides TUPM8X01 [8.208 MB]

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TUPM9Y01

Observations of Coupling During Accumulation Using a Non-Destructive Electron Scanner in the Spallation Neutron Source Accumulator Ring

351

R.E. Potts
ORNL RAD, Oak Ridge, Tennessee, USA
W. Blokland, S.M. Cousineau, J.A. Holmes
ORNL, Oak Ridge, Tennessee, USA

An electron scanner has been installed in the accumulator ring of the Spallation Neutron Source (SNS). The non-destructive device permits turn-by-turn measurements of the horizontal and vertical profiles of the proton beam during accumulation with fine longitudinal resolution. In this study the device is used to identify the source of transverse coupling in the SNS ring and to understand the impact of space charge on the evolution of the coupled beam. We present experimental observations of coupling dependent on tune, injected intensity, and accumulated intensity for a simplified accumulation scenario with no RF and no injection painting. We also investigate the effects of varying the skew quadrupoles and tune for beams with the SNS production-style ring injection and ring RF patterns.

Slides TUPM9Y01 [3.849 MB]

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FRAM4P01

Summary WG-C

L. Perrot
IPN, Orsay, France
S.M. Cousineau
ORNL, Oak Ridge, Tennessee, USA

Friday Summary

Slides FRAM4P01 [3.484 MB]

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Paper	Title	Page
MOAM4P40	A Fifteen Year Perspective on the Design and Performance of the SNS Accelerator	9
	S.M. Cousineau ORNL, Oak Ridge, Tennessee, USA
	Commissioning of the Spallation Neutron Source accelerator began approximately fifteen years ago. Since this time, the accelerator has broken new technological ground with the operation of the world’s first superconducting H⁻ linac, the first liquid mercury target, and 1.4 MW of beam power. This talk will reflect on the issues and concerns that drove key decisions during the design phase, and will consider those decisions in the context of the actual performance of the accelerator. Noteworthy successes will be highlighted and lessons-learned will be discussed. Finally, a look forward toward the challenges associated with a higher power future at SNS will be presented.
	Slides MOAM4P40 [8.952 MB]
Export •	reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPM8X01	First results of laser-assisted H⁻ stripping of a 10 us, 1 GeV beam at the SNS accelerator
	S.M. Cousineau ORNL, Oak Ridge, Tennessee, USA
	Laser-assisted H⁻ stripping has been successfully performed for a 10 us, 1 GeV H⁻ beam at the SNS accelerator. Here we discuss the configuration of the experiment, the associated challenges, and the final results including stripping efficiencies and parameter sensitivities.
	Slides TUPM8X01 [8.208 MB]
Export •	reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPM9Y01	Observations of Coupling During Accumulation Using a Non-Destructive Electron Scanner in the Spallation Neutron Source Accumulator Ring	351
	R.E. Potts ORNL RAD, Oak Ridge, Tennessee, USA W. Blokland, S.M. Cousineau, J.A. Holmes ORNL, Oak Ridge, Tennessee, USA
	An electron scanner has been installed in the accumulator ring of the Spallation Neutron Source (SNS). The non-destructive device permits turn-by-turn measurements of the horizontal and vertical profiles of the proton beam during accumulation with fine longitudinal resolution. In this study the device is used to identify the source of transverse coupling in the SNS ring and to understand the impact of space charge on the evolution of the coupled beam. We present experimental observations of coupling dependent on tune, injected intensity, and accumulated intensity for a simplified accumulation scenario with no RF and no injection painting. We also investigate the effects of varying the skew quadrupoles and tune for beams with the SNS production-style ring injection and ring RF patterns.
	Slides TUPM9Y01 [3.849 MB]
Export •	reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRAM4P01	Summary WG-C
	L. Perrot IPN, Orsay, France S.M. Cousineau ORNL, Oak Ridge, Tennessee, USA
	Friday Summary
	Slides FRAM4P01 [3.484 MB]
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