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TY - CONF AU - Okada, K. AU - Fujiwara, T. AU - Fukui, T. AU - Hosoda, N. AU - Maesaka, H. AU - Maruyama, T. AU - Morimoto, O. AU - Ohshima, T. AU - Okada, T. AU - Sugimoto, T. AU - Tajiri, Y. AU - Yamaga, M. ED - White, Karen S. ED - Brown, Kevin A. ED - Dyer, Philip S. ED - Schaa, Volker RW TI - Database Scheme for On-Demand Beam Route Switching Operations at SACLA/SPring-8 J2 - Proc. of ICALEPCS2019, New York, NY, USA, 05-11 October 2019 CY - New York, NY, USA T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 17 LA - english AB - At SACLA, the X-ray free electron laser (XFEL) facility, we have been operating the electron linac in time-sharing (equal duty) mode between beamlines. The next step is to vary the duty factor on an on-demand basis and to bring the beam into the SP8 storage ring. It is a part of a big picture of an upgrade*. The low-emittance beam is ideal for the next generation storage ring. In every 60 Hz repetition cycle, we have to deal a bunch of electrons properly. The challenge here is we must keep the beam quality for the XFEL demands while responding occasional injection requests from the storage ring**. This paper describes the database system that supports both SACLA/SP8 operations. The system is a combination of RDB and NoSQL databases. In the on-demand beam switching operation, the RDB part keeps the parameters to define sequences, which include a set of one-second route patterns, and a bucket sequence for the injection, etc. As for data analysis, it is going to be a post-process to build an event for a certain route, because not all equipment get the route command in real time. We present the preparation status toward the standard operation for beamline users. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1352 EP - 1355 KW - operation KW - database KW - controls KW - storage-ring KW - FEL DA - 2020/08 PY - 2020 SN - 2226-0358 SN - 978-3-95450-209-7 DO - doi:10.18429/JACoW-ICALEPCS2019-WEPHA112 UR - https://jacow.org/icalepcs2019/papers/wepha112.pdf ER -