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- M. Satoh, K. Furukawa, K. Mikawa, F. Miyahara, Y. Seimiya, T. Suwada
KEK, Ibaraki, Japan
- K. Hisazumi, T. Ichikawa, T. Kudou, S. Kusano, Y. Mizukawa
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
- H.S. Saotome, M. Takagi
Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan
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Toward SuperKEKB project, the injector linac upgrade is ongoing for aiming at the stable electron/positron beam operation with low emittance and high intensity bunch charge. To obtain such high quality beam, we have being commissioning many newly developed subsystems including a low emittance photocathode rf gun since October of 2013. Eventually, we will perform the simultaneous top-up for the four independent storage rings including two light sources. The stable beam operation as long as possible is desired since the prospective physics results strongly depends on the reliability and availability of accelerator operation. Since the middle stage of KEKB project, the injector linac control system has been gradually transferred to the EPICS based one from the in-house system based on RPC. We are expanding the existing control system for the newly installed devices like a network attached power supply, timing jitter monitoring system, and so on. In addition, many commissioning tools are now under development to accelerate the high quality beam development. In this paper, we will describe the present status of injector linac control system and future plan in detail.
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