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Title: MM-Wave Cavity/Klystron Developments Using Deep X-Ray Lithography at the Advanced Photon Source

Conference · · eConf C9803233:298,1998
OSTI ID:894157

Recent microfabrication technologies based on LIGA (German acronym for Lithographe, Galvanoformung, und Abformung) have been applied to build high-aspect-ratio, metallic or dielectric, planar structures suitable for high-frequency rf cavity structures. The cavity structures would be used as parts of linear accelerators, microwave undulators, and mm-wave amplifiers. The microfabrication process includes manufacturing of precision x-ray masks, exposure of positive resist by x-rays through the mask, resist development, and electroforming of the final microstructure. Prototypes of a 32-cell, 108-GHz constant impedance cavity and a 66-cell, 94-GHz constant-gradient cavity were fabricated using the synchrotron radiation sources at APS. Preliminary design parameters for a 91-GHz modulator klystron along with an overview of the new technology are discussed.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
894157
Report Number(s):
SLAC-PUB-12177; TRN: US200702%%102
Journal Information:
eConf C9803233:298,1998, Conference: 1st Asian Particle Accelerator Conference (APAC 98) 23-27 Mar 1998, Tsukuba, Japan
Country of Publication:
United States
Language:
English