Title :
A permanent-magnet focused X-band photoinjector
Author :
Yu, Daren ; Newsham, D. ; Wilson, P. ; Zeng, Jun ; Rosenzweig, J. ; Hartemann, F. ; Landahl, E.
Author_Institution :
DULY Res. Inc.
Abstract :
A Plane-Wave-Transformer (PWT), integrated photo-injector operating at an X-band frequency (8.547 GHz) is being developed by DULY Research Inc. in a DOE SBIR project, in collaboration with UCLA and UCD/ILSA. Upward frequency scaling from an S-band PWT photo-injector would result in a compact photo-injector with unprecedented brightness. Challenging technological innovations are required at X-band. In particular, water cooling capacity, mechanical support strength, and materials properties do not scale linearly with frequency. Instead of using large solenoids, we have successfully designed the required focusing for an X-band PWT using a compact, permanent magnet system. Also described in this paper is a system design of the X-band photo-injector, including the RF system and the cooling/support of the PWT structure
Keywords :
accelerator RF systems; electron sources; particle beam dynamics; permanent magnets; 8.547 GHz; S-band PWT photo-injector; integrated photo-injector; materials properties; mechanical support strength; permanent magnet system; permanent-magnet focused X-band photoinjector; plane-wave-transformer; upward frequency scaling; water cooling capacity; Brightness; Collaboration; Cooling; Frequency; Material properties; Solenoids; Technological innovation; US Department of Energy; User centered design; Water;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794342
