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RIS citation export for WEPHA112: Database Scheme for On-Demand Beam Route Switching Operations at SACLA/SPring-8

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  -