High gradient study at KEK on X-band accelerator structure for linear collider

T. Higo, M. Akemoto, A. Enomoto, S. Fukuda, H. Hayano, N. Kudo, S. Matsumoto, T. Saeki, N. Terunuma, N. Toge, K. Watanabe, T. Suehara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)


This paper describes the high-field studies on accelerator structures conducted at the X-band Test Facility, XTF, which was commissioned at KEK in 2004. A 60cm-long structure built at KEK has been processed in 2004-2005, with an accumulated operation time with the RF turned on of ∼1000 hours. The RF breakdown rate of this structure at 65MV/m with 400nsec flat pulses was initially measured to be ∼once per 0.2×106 pulses, and decreased to ∼once per 0.7×106 pulses with the processing. This latter breakdown rate satisfies the stability requirement for use of such accelerator structures at the linear collider. The high-power performance of two more 60cm structures will be measured in 2005. These studies are expected to provide benchmark performance data of accelerator structures in both high-gradient and mediumgradient operations, such as those envisaged in applications to compact X-band accelerators.

Original languageEnglish
Title of host publicationProceedings of the Particle Accelerator Conference, PAC 2005
Number of pages3
Publication statusPublished - Dec 1 2005
Externally publishedYes
EventParticle Accelerator Conference, PAC 2005 - Knoxville, TN, United States
Duration: May 16 2005May 20 2005

Publication series

NameProceedings of the IEEE Particle Accelerator Conference


OtherParticle Accelerator Conference, PAC 2005
Country/TerritoryUnited States
CityKnoxville, TN

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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