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Report No.
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Progress of the general control system for the Materials and Life Science Experimental Facility in J-PARC

Sakai, Kenji ; Oi, Motoki ; Watanabe, Akihiko; Kai, Tetsuya  ; Kato, Yuko; Meigo, Shinichiro  ; Takada, Hiroshi  

For safe and stable beam operation, a MLF general control system (GCS) consists of several subsystems such as an integral control, interlock, server, network, and timing distribution systems. Since the first beam injection in 2008, the GCS has operated stably without any serious troubles in comparison with upgrade of target devices for ramping up beam power and increment of user apparatuses year by year. In recent years, however, it has been improved significantly in view of sustainable long-term operation and maintenance. The monitor and operation system of the GCS has been upgraded by changing its framework software to improve potential flexibility in its maintenance. Its interlock system was also modified in accordance with the re-examination of the risk management system of J-PARC. This paper reports recent progress of the MLF-GCS.

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