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KEKB Injector Linac and Upgrade for SUPERKEKB

Shinichiro Michizono

Open publisher page 3 citations

Abstract

The KEB injector linac delivers electrons and positrons to four rings (KEKB LER, KEK HER, PF and PF-AR). The operational status of the KEKB injector linac is summarized. The R&D work concerning diagnostics of the klystrons and the beam-quality are also described. An upgrade plan of the injector linac using a C-band rf system is under consideration for SuperKEKB. A C-band acceleration structure was installed in the KEKB linac after rf conditioning at more than 40 MW. An energy gain of more than 40 MV/m was confirmed by the beam acceleration. The C-band acceleration unit has been operated continuously for a stability test.

About this research paper

What this paper is about

The KEB injector linac delivers electrons and positrons to four rings (KEKB LER, KEK HER, PF and PF-AR). The operational status of the KEKB injector linac is summarized. The R&D work concerning diagnostics of the klystrons and the beam-quality are also described. An upgrade plan of the injector linac using a C-band rf system is under consideration for SuperKEKB. A C-band acceleration structure was installed in the KEKB linac after rf conditioning at more than 40 MW. An energy gain of more than 40 MV/m was confirmed by the beam acceleration. The C-band acceleration unit has been operated continuously for a stability test.

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Available abstract

The KEB injector linac delivers electrons and positrons to four rings (KEKB LER, KEK HER, PF and PF-AR). The operational status of the KEKB injector linac is summarized. The R&D work concerning diagnostics of the klystrons and the beam-quality are also described. An upgrade plan of the injector linac using a C-band rf system is under consideration for SuperKEKB. A C-band acceleration structure was installed in the KEKB linac after rf conditioning at more than 40 MW. An energy gain of more than 40 MV/m was confirmed by the beam acceleration. The C-band acceleration unit has been operated continuously for a stability test.

Key concepts: KEKB, Linear particle accelerator, Klystron, Injector, Upgrade, Acceleration, Beam (structure), Physics

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