Multi-bunch beam generation by photo-cathode rf gun for kek-stf

M. Kuriki, H. Iijima, S. Hosoda, K. Watanabe, H. Hayano, K. Kawase, G. Isoyama, R. Kato, H. Sugiyama, J. Urakawa, A. Kuramoto, Y. Takahashi, S. Kashiwagi, Kazuyuki Sakaue

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


The purpose of KEK-STF (Superconducting Test Facil- ity) is to establishsuper-conducting accelerator technology for ILC (International Linear Collider). Anotheraim is MEXT Quantum Beam project which is a high brightness X-ray generation by inverselaser Compton scattering. In both projects, high intensity electron beam in multi-bunch andlong macro-pulse is essential. An L-band normal con- ducting RF gun was fabricated byDESY-FNAL-KEK col- laboration and the cavity conditioning was performed since 2010. Thecavity conditioning dramatically reduced the un- wanted dark-current by two orders ofmagnitude and it is 100μA at 40 MV/m gradient typically. In the beam gen- eration testfrom February 2012, 1.0 ms macro pulse was successfully generated in designed beamintensity.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Number of pages3
Publication statusPublished - 2012
Externally publishedYes
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA
Duration: 2012 May 202012 May 25


Other3rd International Particle Accelerator Conference 2012, IPAC 2012
CityNew Orleans, LA

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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