Accession Number DE2012-1045189
Title Advances in X-Band TW Accelerator Structures Operating in the 100 MV/m Regime.
Publication Date Jul 2012
Media Count 3p
Personal Author A. Grudiev G. Riddone K. Yokoyama S. Doebert S. Matsumoto T. Higo W. Wuensch Y. Higashi
Abstract A CERN-SLAC-KEK collaboration on high gradient X-band accelerator structure development for CLIC has been ongoing for three years. The major outcome has been the demonstration of stable 100 MV/m gradient operation of a number of CLIC prototype structures. These structures were fabricated using the technology developed from 1994 to 2004 for the GLC/NLC linear collider initiative. One of the goals has been to refine the essential parameters and fabrication procedures needed to realize such a high gradient routinely. Another goal has been to develop structures with stronger dipole mode damping than those for GLC/NLC. The latter requires that the surface temperature rise during the pulse be higher, which may increase the breakdown rate. One structure with heavy damping has been RF processed and another is nearly finished. The breakdown rates of these structures were found to be higher by two orders of magnitude compared to those with equivalent acceleration mode parameters but without the damping features. This paper presents these results together with some of the earlier results from non-damped structures.
Keywords Accelerators
Damping
Dipoles
Fabrication
Gradients
Linear colliders
Parameters
Rf systems

 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 46 - Physics
Corporate Author Stanford Research Inst., Menlo Park, CA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1303
Contract Number DE-AC02-76SF00515

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