SNS Laser Stripping for H- Injection
The ORNL spallation neutron source (SNS) user facility requires a reliable, intense beams of protons. The technique of H<sup>-</sup> 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<sup>-</sup> 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<sup>-</sup> 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.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-84ER40150; AC05-00OR22725
- OSTI ID:
- 1021888
- Report Number(s):
- JLAB-FEL-09-1144; DOE/ER/40150-4954; TRN: US1104083
- Resource Relation:
- Conference: PAC09, 4-8 May 2009, Vancouver, BC, Canada
- Country of Publication:
- United States
- Language:
- English
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