Control system capable of gracefully degraded operation for the 750 MeV synchrotron radiation source

A control system which is capable of gracefullydegraded operation for the 750 MeV electron storage ring as a dedicated VUV (vacuum-ultra-violet) synchrotron radiation source at the UVSOR has been developed to provide a synchrotron radiation beam for a long time without any fatal shutdown. Based on a...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 1993-08, Vol.40 (4), p.1286-1294
Main Authors: Kanaya, Noriichi, Hama, Hiroyuki, Yamazaki, Jun-ichiro, Matsudo, Osamu, Isoyama, Goro
Format: Article
Language:English
Subjects:
430300 - Particle Accelerators- Auxiliaries & Components
430400 - Particle Accelerators- Storage Rings
Computer simulation
COMPUTERIZED CONTROL SYSTEMS
Computers
CONTROL SYSTEMS
Control systems design
DESIGN
Distributed control systems
ELECTRONS
ELEMENTARY PARTICLES
FAILURES
FERMIONS
LEPTONS
Magnetic devices
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
OPERATION
PARTICLE ACCELERATORS
Radiation
RADIATION SOURCES
Reconfigurable control systems
Servers
Shutdowns
Storage
STORAGE RINGS
Superconducting magnets
Synchrotron radiation
SYNCHROTRON RADIATION SOURCES
Vacuum
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Description
Summary:A control system which is capable of gracefullydegraded operation for the 750 MeV electron storage ring as a dedicated VUV (vacuum-ultra-violet) synchrotron radiation source at the UVSOR has been developed to provide a synchrotron radiation beam for a long time without any fatal shutdown. Based on a client-server model with a hierarchy of three layers, the control system was designed to be reconfigurable. Under normal operation, the distributed control system is configured so that two process computers control the storage ring cooperatively with full throughput. If a failure occurs in one computer, the control system is reconfigured so that the remaining functional computer can provide gracefully degraded operation to resume control of the storage ring for synchrotron radiation experiments. The control system automatically operates the storage ring with a single action on a menu initiated by an operator. Operational experience has shown that the control system can successfully operate the storage ring.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.1993.8526574