| Paper |
Title |
Other Keywords |
Page |
| MOP035 |
Operational Aspects of High-Power Energy-Recovery Linacs
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linac, quadrupole, vacuum, lattice |
115 |
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- S. V. Benson, D. Douglas, P. Evtushenko, K. Jordan, G. Neil, T. Powers
Jefferson Lab, Newport News, Virginia
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We have been operating a high power energy recovery linac (ERL) at Jefferson Lab for several years. In the process we have learned quite a bit about both technical and physics limitations in high power ERLs. Several groups are now considering new ERLs that greatly increase either the energy, the current or both. We will present some of our findings on what to consider when designing, building, and operating a high power ERL. These include space charge effects, halo, magnetic field quality, RF stability, short bunch formation, coherent synchrotron radiation and it effect on the beam, beam breakup instabilities, higher order mode production, and diagnostic requirements.
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| TU1002 |
Technologies Toward a 100-kW Free-Electron Laser
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electron, gun, extraction, emittance |
205 |
| |
- D. C. Nguyen
LANL, Los Alamos, New Mexico
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The challenges of a high-average-power (100 kW and above) FEL are not insurmountable. Some of these challenges however require technological solutions beyond the incremental improvements of existing mature technologies. Efforts are underway to develop novel technologies that could lead to a new level of FEL performance, e.g. 100-kW average power. These technologies include a high-average-current RF photo-injectors, spoke resonator RF cavities with energy recovery, high-gain amplifiers driven by high-brightness electron beams, beam-breakup instability suppression, and new concepts of tapered wiggler designs, e.g. stair-step taper, for efficient energy extraction. In this talk, these technologies, potential benefits and issues will be discussed.
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