High-power electron beam injectors for 100 kW free-electron lasers

• Published in: Proceedings of the 2003 Particle Accelerator Conference Vol. 2; pp. 977 - 979 Vol.2
• Main Authors: Todd, A., Bluem, H., Christina, V., Cole, M., Rathke, J., Schultheiss, T., Campisi, I., DaIy, E., Douglas, D., Neil, G., Preble, J., Rimmer, R., Rode, C., Sekutowicz, J., Whitlatch, T., Wiseman, M., Colestock, P., Kelley, J.P., Kurennoy, S., Nguyen, D., Russell, S., Schrage, D., Wood, R., Young, L.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2003
• Subjects: Brightness; Collaboration; Costs; Electron beams; Free electron lasers; Laboratories; Linear particle accelerator; Radio frequency; Superconducting photodetectors; Testing
• DOI: 10.1109/PAC.2003.1289575
• EISSN: 2152-9647
• ISBN: 9780780377387; 0780377389
• ISSN: 1063-3928

A key technology issue on the path to high-power FEL operation is the demonstration of reliable, high-brightness, high-power injector operation. We describe two ongoing programs to produce 100 mA injectors as drivers for 100 kW free-electron lasers. In one approach, in collaboration with the Thomas Jefferson National Accelerator Facility, we are fabricating a 750 MHz superconducting RF cryomodule that will be integrated with a room-temperature DC photocathode gun and tested at the Laboratory. In the other approach, in collaboration with Los Alamos National Laboratory, a high-current 700 MHz, normal-conducting, RF photo-injector is being designed and will undergo thermal management testing at the Laboratory. We describe the design, the projected performance and the status of both injectors.