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2016-09-23
23:28
PERFORMANCE ANALYSIS OF MULTI-TURN EXTRACTION FROM THE PROTON SYNCHROTRON TO THE SUPER PROTON SYNCHROTRON / Abernethy, Samuel
Within CERN's accelerator complex, the extraction from the Proton Synchrotron to the Super Proton Synchrotron has been done using the so-called ``Continuous Transfer" (CT) method since the 1970's. [...]
CERN-STUDENTS-Note-2016-246.
- 2016.
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2016-09-13
08:41
Time Optimal Synchronization Procedure and Associated Feedback Loops / Angoletta, Maria Elena (CERN) ; Pedersen, Flemming
A procedure to increase the speed of currently used synchronization loops in a synchrotron by an order of magnitude is presented. [...]
CERN-ACC-NOTE-2016-0055.
- 2016. - 31 p.
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2016-09-06
06:23
Upgrades to the Infrastructure and Management of the Operator Workstations and Servers for Run 2 of the CERN Accelerator Complex / Bland, Alastair (CERN) ; Page, Stephen (CERN)
The Controls Group of the CERN Beams Department provides more than 400 operator workstations in the CERN Control Centre (CCC) and technical buildings of the accelerators, plus 300 servers in the server room (CCR) of the CCC. During the long shutdown of the accelerators that started in February 2013, many upgrades were done to improve this infrastructure in view of the higher-energy LHC run. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-THHD3O08 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.THHD3O08

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2016-09-06
06:23
A Generic Timing Software for Fast Pulsed Magnet Systems at CERN / Chanavat, Christophe (CERN) ; Arruat, Michel (CERN) ; Carlier, Etienne (CERN) ; Magnin, Nicolas (CERN)
At CERN, fast pulsed magnet (kicker) systems are used to inject, extract, dump and excite beams. Depending on their operational functionalities and as a result of the evolution of controls solutions over time, the timing controls of these systems were based on hybrid hardware architectures that have resulted in a large disparity of software solutions. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-WEPGF127 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEPGF127

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2016-09-06
06:23
A Modular Approach to Develop Standardized HVAC Control Systems with UNICOS CPC Framework / Booth, William (CERN) ; Barillère, Renaud (CERN) ; Bes, Marcin (CERN) ; Blanco Vinuela, Enrique (CERN) ; Bradu, Benjamin (CERN) ; Quilichini, Marc (CERN) ; Zimny, Michal (CERN)
At CERN there are currently about 200 ventilation air handling units in production, used in many different applications, including building ventilation, pressurization of safe rooms, smoke extraction, pulsion/extraction of experimental areas (tunnel, cavern, etc), and the ventilation of the computing centre. The PLC applications which operate these installations are currently being revamped to a new framework (UNICOS CPC). [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-WEPGF094 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEPGF094

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2016-09-06
06:23
The New Modular Control System for Power Converters at CERN / Di Cosmo, Matteo (CERN) ; Todd, Benjamin (CERN)
The CERN Accelerator Complex consists of several generations of particle accelerators, having around 5000 power converters supplying regulated current and voltage to normal and superconducting magnets. Today around 12 generations of legacy control system types are in operation in the accelerator complex, having significant impact on operability, support and flexibility for the converter controls electronics. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-WEPGF005 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEPGF005

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2016-09-06
06:22
Disruptor - Using High Performance, Low Latency Technology in the CERN Control System / Gabriel, Mathieu (CERN) ; Gorbonosov, Roman (CERN)
Accelerator control systems process thousands of concurrent events per second, which adds complexity to their implementation. The Disruptor library provides an innovative single-threaded approach, which combines high performance event processing with a simplified software design, implementation and maintenance. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-WEB3O03 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEB3O03

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2016-09-06
06:22
quasar - A Generic Framework for Rapid Development of OPC UA Servers / Schlenker, Stefan (CERN) ; Abalo Miron, Damian (Oviedo U.) ; Farnham, Ben (CERN) ; Filimonov, Viatcheslav (St. Petersburg, INP) ; Nikiel, Piotr (CERN) ; Soare, Cristian-Valeriu (CERN)
This paper describes a new approach for generic design and efficient development of OPC Unified Architecture (UA) servers. Development starts with creation of a design XML file, describing an OO information model of the target system or device. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-WEB3O02 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEB3O02

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2016-09-06
06:22
Integration of Heterogeneous Access Control Functionalities Using the New Generation of NI cRIO 903x Controllers / Valentini, Francesco (CERN) ; Hakulinen, Timo (CERN) ; Hammouti, Louis (CERN) ; Ninin, Pierre (CERN)
Engineering of Personnel Protection Systems (PPS) in large research facilities, such CERN, represents nowadays a major challenge in terms of requirements for safety and access control functionalities. PPS are usually conceived as two separate independent entities: a Safety System dealing with machine interlocks and subject to rigid safe-ty standards (e.g. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-MOPGF143 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.MOPGF143

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2016-09-06
06:22
Upgrade of the Trigger Synchronisation and Distribution System of the Beam Dumping System of the Large Hadron Collider / Magnin, Nicolas (CERN) ; Antoine, Alain (CERN) ; Carlier, Etienne (CERN) ; Chareyre, Vincent (CERN) ; Gabourin, Stéphane (CERN) ; Patsouli, Anastasia (CERN) ; Voumard, Nicolas (CERN)
Various upgrades were performed on the Large Hadron Collider (LHC) Beam Dumping System (LBDS) during Long Shutdown 1 (LS1) at CERN, in particular to the Trigger Synchronisation and Distribution System (TSDS): A redundant direct connection from the LHC Beam Interlock System to the re-trigger lines of the LBDS was implemented, a fully redundant powering architecture was set up, and new Trigger Synchronisation Unit cards were deployed over two separate crates instead of one. These hardware changes implied the adaptation of the State Control and Surveillance System and an improvement of the monitoring and diagnosis systems, like the various Internal Post Operation Check (IPOC) systems that ensure that, after every beam dump event, the LBDS worked as expected and is 'as good as new' for the next LHC beam. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-MOPGF135 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.MOPGF135

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