Control system for insertion devices at the advanced photon source

Journal Article · Tue Jul 01 00:00:00 EDT 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.54622· OSTI ID:21179534

Makarov, Oleg A; Den Hartog, Patric; Moog, Elizabeth R; Smith, Martin L ^[1]

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1. Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439-4800 (United States)

Eighteen insertion devices (IDs) are installed at the Advanced Photon Source (APS), and three more are scheduled for installation by the end of this year. A distributed control system for insertion devices at the APS storage ring was created with the Experimental Physics and Industrial Control System (EPICS). The basic components of this system are operator interfaces (OPIs), input output controllers (IOCs), and a local area network that allows the OPI and IOC to communicate. The IOC operates under the VxWorks OS with an EPICS database and a sequencer. The sequencer runs an ID control program written in State Notation Language. The OPI is built with the EPICS tool MEDM and provides display screens with input and output fields and buttons for gap control of the IDs. Global commands like 'open all IDs' are C-shell scripts invoked from the display menu. The algorithms for control and protection of the ID and ID vacuum chamber and the accuracy of gap control are discussed.

• OSTI ID: 21179534
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 417; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATOR FACILITIES
ACCURACY
ADVANCED PHOTON SOURCE
ALGORITHMS
CONTROL SYSTEMS
ELECTRON BEAMS
LOCAL AREA NETWORKS
PHOTON BEAMS
SYNCHROTRON RADIATION
VACUUM SYSTEMS