1 paper

title:	A permanent-magnet focused X-band photoinjector
format:	conference procceeding
conference:	1999 Particle Accelerator Conference
year:	1999
8 authors:	Yu, D. | Newsham, D. | Wilson, P. | Zeng, J. | J. B. Rosenzweig | X. Ding | F. Hartemann | Landahl, E.
abstract:	A Plane-Wave-Transformer (PWT), integrated photoinjector operating at an X-band frequency (8.547GHz) 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 photoinjector would result in a compact photoinjector 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 photoinjector, including the RF system and the cooling/support of the PWT structure.
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