PAC09 - List of Authors (Shinn, M.D.)

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Shinn, M.D.

Paper	Title	Page
TU6RFP039	SNS Laser Stripping for H^- Injection	1629
	V.V. Danilov, Y. Liu ORNL, Oak Ridge, Tennessee K.B. Beard, V.G. Dudnikov, R.P. Johnson Muons, Inc, Batavia M.D. Shinn JLAB, Newport News, Virginia
	Funding: Supported in part by USDOE Contract No. DE-AC05-84-ER-40150. Supported in part by USDOE Contract DE-AC05-00OR22725 The ORNL spallation neutron source (SNS) user facility requires a reliable, intense beams of protons. The technique of H^- charge exchange injection into a storage ring or synchrotron has the potential to provide the needed beam currents, but it will be limited by intrinsic limitations of carbon and diamond stripping foils. A laser in combination with magnetic stripping has been used to demonstrate a new technique for high intensity proton injection, but several problems need to be solved before a practical system can be realized. Technology developed for use in Free Electron Lasers is being used to address the remaining challenges to practical implementation of laser controlled H^- charge exchange injection for the SNS. These technical challenges include (1) operation in vacuum, (2) the control of the UV laser beam to synchronize with the H^- beam and to shape the proton beam, (3) the control and stabilization of the Fabry-Perot resonator, and (4) protection of the mirrors from radiation.

Paper

Title

Page

TU6RFP039

SNS Laser Stripping for H^- Injection

1629

V.V. Danilov, Y. Liu
ORNL, Oak Ridge, Tennessee
K.B. Beard, V.G. Dudnikov, R.P. Johnson
Muons, Inc, Batavia
M.D. Shinn
JLAB, Newport News, Virginia

Funding: Supported in part by USDOE Contract No. DE-AC05-84-ER-40150. Supported in part by USDOE Contract DE-AC05-00OR22725

The ORNL spallation neutron source (SNS) user facility requires a reliable, intense beams of protons. The technique of H^- charge exchange injection into a storage ring or synchrotron has the potential to provide the needed beam currents, but it will be limited by intrinsic limitations of carbon and diamond stripping foils. A laser in combination with magnetic stripping has been used to demonstrate a new technique for high intensity proton injection, but several problems need to be solved before a practical system can be realized. Technology developed for use in Free Electron Lasers is being used to address the remaining challenges to practical implementation of laser controlled H^- charge exchange injection for the SNS. These technical challenges include (1) operation in vacuum, (2) the control of the UV laser beam to synchronize with the H^- beam and to shape the proton beam, (3) the control and stabilization of the Fabry-Perot resonator, and (4) protection of the mirrors from radiation.