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Other Keywords |
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| MOY03 |
Surveying Software Technology for Accelerator Control Systems
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controls, storage-ring, survey, linac |
16 |
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- T. Friedrich, M. Törngren
KTH/MD, Stockholm
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Virtually all accelerator based research facilities nowadays use a mixture of software libraries, tools, protocols and development techniques to address the facilities’ various control system requirements efficiently. Many of these technologies are open-source and shared between laboratories to various extents. Motivated by the planning of MAX-lab’s new light source project, the MAX IV facility, we have conducted a state-of-the-art survey of these technologies, which will serve as a knowledge base for upcoming design decisions. This paper provides a summary of the topics and conclusions of our survey. In this scope the survey compares software technologies with respect to user features (scientific analysis and operation requirements), quality requirements (integration, performance, services, reliability, security, safety), and other issues. Control system design goals are beneficial long-term effects on feature opportunities, software development and maintenance costs.
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Slides
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| MOZ03 |
Beam Emittance Measurement Tool for CEBAF Operations
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controls, emittance, quadrupole, synchrotron |
25 |
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| TUY04 |
TINE Video System – A Modular, Well-defined, Component-based and Interoperable TV System Undergoing a Redesign
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controls, diagnostics, laser, monitoring |
64 |
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- S. Weisse
DESY Zeuthen, Zeuthen
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In recent years, the usage of TV systems and optical readout at accelerator facilities has constantly been increasing. At the same time, the pace of vendor upgrades of industrial vision hardware has hardly slackened. Because image readout hardware is required to meet special criteria in accelerator physics, vastly different hardware systems are frequently used side by side. Given such circumstances it is not surprising that the imaging software needs to be changed, adapted and updated on a semi-permanent basis. Current TV systems cannot cope very well with rapid software and hardware changes. To improve this, a redesign of the current TINE Video System*, initiated at PITZ, was undertaken. Efforts are focused on an abstract, modular grabbing interface, dedicated software components, a well-defined Video Transport Layer and use of standard file formats where possible. This paper will show current, planned and possible software architectures as well as hardware support and outlines perspectives for near and far future. Although the current implementation is integrated into TINE control system, it is modular enough so that integration into other control systems can be considered.
* S. Weisse, P. Duval, G. Trowitzsch, M. Lomperski, "Status of a versatile Video System at PITZ, DESY-2 and EMBL Hamburg", Proceedings of the ICALEPCS 2007, Knoxville, Tennessee, USA
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Slides
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| TUZ02 |
AMS - Alarm Management System
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controls, free-electron-laser, laser |
70 |
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- M. R. Clausen, J. Hatje, M. Moeller, H. R. Rickens
DESY, Hamburg
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Alarm management is a mandatory component of todays control systems. The widely distributed process controls for the x-ray free electron laser facility XFEL being build at DESY in Hamburg, Germany will increase the demands for a reliable and functional alarm management system. Todays alarm tools like the EPICS alarm handler may be used for alarm display but they lack management functionalities. The new alarm management system comprises all levels of alarm handling: Collection, store and forward, display as tables and trees, persistent store, archive, archive retrieval, filtering, actions behind filters and distributors. Distributors are issuing actions in the form of (JMS) messages, GSM-SMS or Email. The new alarm system is fully integrated into the CSS framework including views and configuration editors. Alarms as well as log messages are handled by a set of redundant ActiveMQ servers which implement the Java Message Service (JMS) specified by SUN. This paper will describe the whole alarm management system which is based on open source software and independent from control system specific implementations.
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Slides
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| TUP007 |
Machine-Mode Aware Beam Loss Monitoring
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beam-losses, extraction, resonance, monitoring |
93 |
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- J. Dedič, M. Kobal, R. Štefanič
Cosylab, Ljubljana
- A. Balling, F. Frommberger, W. Hillert
ELSA, Bonn
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Beam-loss level monitoring is a powerful diagnostic tool concerning accelerator health. Particles leave the vacuum pipe for various reasons, such as intrabeam scattering (Touschek effect), residual gas molecules, closed orbit distortions or mechanical obstacles (aperture restrictions, installation errors). These can be identified by appropriate measurements. The steady-state beam loss level varies throughout the machine and has to be measured and documented for further reference. Besides general radiation safety purposes, changes (especially increases) occurring after machine upgrades are of special interest. When simple monitoring of average beam loss fluctuations is insufficient, problem diagnostics should be further enhanced by correlating beam loss monitor (BLM) detector readout with events in the machine. For best flexibility, pulses should only be counted at certain conditions and during well defined time slots synchronized with the current machine operation cycle. In cooperation with Cosylab, such an advanced BLM acquisition system was developed for the Electron Stretcher Accelerator ELSA (University of Bonn, Germany), allowing various optimized acquisition modes.
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Poster
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| TUP018 |
Re-writing ALS Control Room Software in C#
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controls, linac, gun, beam-transport |
122 |
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- H. Nishimura, G. J. Portmann, CA. Timossi, M. E. Urashka
LBNL, Berkeley, California
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After years of R&D studies showing the value of migrating the operator interface applications to the .NET Framework, a small team has been formed to focus on re-writing all of the high-level control system software using the C# programming language for the Windows Vista based operator stations. We have currently upgraded several major programs with the goal of focusing on the injector system that was commissioned in 1991. We will present real examples, and discuss the technical issues of migrating to the .NET Framework in the context of the EPICS* client programming. The architectural issues will be presented in another paper.
*Dalesio, et al. "The Experimental Physics and Industrial Control System Architecture," submitted to ICALEPCS, Berlin, Germany, Oct. 18-22, 1993.
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Slides
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| WEZ02 |
The Canadian Light Source Control System - A Case Study in the Use of Single Board Computers and Industrial PC Equipment for Synchrotron Control
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controls, synchrotron, storage-ring, booster |
157 |
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| WEP004 |
Permanent Magnet Insertion Device Control Systems on Diamond
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controls, insertion, insertion-device, undulator |
174 |
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- A. J. Rose, A. I. Bell, M. T. Heron, S. C. Lay
Diamond, Oxfordshire
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Diamond Light Source has designed and constructed 12 permanent magnet insertion devices over the past 5 years. These are ten In-vacuum Undulators and two Ex-vacuum Apple II Undulators. For all of these a common control system has been used. This uses a VME based motor controller, and a separate PLC subsystem for protection. The VME system runs EPICS to integrate in with overall control system. Two new designs of insertion device and are currently in progress, which will require variants of this control system. The design for these control systems, issues experienced and operational performance will be presented.
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Poster
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