X-Band RF Structure and Beam Dynamics Workshop - 44th ICFA Advanced Beam Dynamics Workshop

Session

Plenary Session (Chair S. Chattopadhyay)

3 Dec 2008, 13:40

Cockcroft Institute

35. Fundamental Surface Science and Engineering Issues for High Gradient X-Band Structures at KEK

Dr Higashi Yasuo

03/12/2008, 13:40

Since 1990, KEK has been studying the X-band accelerating structure fabrication technologies and has been strongly collaborating with SLAC. So far high gradient and wake field performance tests were carried out with both laboratories. Currently such items are being studied as various materials, surface preparation and assembly technologies in order to understand what determines breakdown...

36. Applications of X-Ray Microfabrication Techniques for Accelerators

Dr Alireza Nassiri (Argonne National Laboratory - DOE)

03/12/2008, 14:20

Modern microfabrication techniques based on deep X-ray lithography (LIGA), capable of producing high-aspect-ratio structures, are attractive and can be considered for the fabrication of metallic or dielectric planar structures suitable for high-frequency rf cavities and rf power sources. This paper will present an overview of this technology and a summary of work done at Argonne and elsewhere....

37. X-Band Deflector Development at SLAC

Dr Juwen Wang

03/12/2008, 14:40

Design studies on the X-Band transverse rf deflectors operating at HEM11 mode have been made for two different applications. One is for beam measurements of time-sliced emittance and slice energy spread for the upgraded LCLS project, its optimization in rf efficiency and system design are carefully considered. Another is to design an ultra-fast rf kicker in order to pick up single bunches from...

39. X-Band Crab Cavities for CLIC

Graeme Burt (Cockcroft Institute)

03/12/2008, 15:00

The CLIC machine incorporates a 20 mrad crossing angle at the IP to aid the extraction of spent beams. In order to recover the luminosity lost through the crossing angle a crab cavity is proposed to rotate the bunches prior to collision. The crab cavity is chosen to have the same frequency as the main linac (11.9942 GHz) as a compromise between size, phase stability requirements and beam...