GRACEFULLY-DEGRADED OPERATIONABLE CONTROL-SYSTEM FOR THE UVSOR SYNCHROTRON-RADIATION SOURCE AND ITS OPERATIONAL EXPERIENCE

Authors
KANAYA N HAMA H YAMAZAKI J MATSUDO O ISOYAMA G
Citation
N. Kanaya et al., GRACEFULLY-DEGRADED OPERATIONABLE CONTROL-SYSTEM FOR THE UVSOR SYNCHROTRON-RADIATION SOURCE AND ITS OPERATIONAL EXPERIENCE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 352(1-2), 1994, pp. 166-169
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
352
Issue
1-2
Year of publication
1994
Pages
166 - 169
Database
ISI
SICI code
0168-9002(1994)352:1-2<166:GOCFTU>2.0.ZU;2-6
Abstract
The UVSOR control system for the 750 MeV electron storage ring as a de dicated VUV (Vacuum-ultraviolet) synchrotron radiation source is descr ibed. When a failure occurs in the control system, it can provide grac efully-degraded operation to resume control of the storage ring withou t a fatal shutdown. The control system comprises two Micro-VAX 3400's used for process computers, two workstations for operator consoles and mainly CAMAC interfaces for accelerator devices. The control system a lso provides various automatic operation modes of the storage ring for user experiments, such as: (1) multi-bunch operation with/without a s uperconducting wiggler, (2) single-bunch operation and (3) machine-stu dy operation. An operator can initiate one of these modes using menus on X-Windows on the workstation. Operational experience has shown that the control system can successfully operate the storage ring even whe n a failure occurs.