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TUP021 |
The LHC Post Mortem Analysis Framework
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131 |
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- M. Zerlauth, O. O. Andreassen, V. Baggiolini, A. Castaneda, R. Gorbonosov, D. Khasbulatov, H. Reymond, A. Rijllart, I. Romera Ramirez, N. Trofimov
CERN, Geneva
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The LHC with its unprecedented complexity and criticality of beam operation will need thorough analysis of data taken from systems such as power converters, interlocks and beam instrumentation during events like magnet quenches and beam loss. The causes of beam aborts or in the worst case equipment damage have to be revealed to improve operational procedures and protection systems. The correct functioning of the protection systems with their required redundancy has to be verified after each such event. Post mortem analysis software for the control room has been prepared with automated analysis packages in view of the large number of systems and data volume. This paper recalls the requirements for the LHC Beam Post Mortem System and the necessity for highly reliable Post Mortem Data collection mechanisms. It describes in detail the redundant architecture for data collection as well as the chosen implementation of a multi-level analysis framework, allowing for automated analysis and qualification of a beam dump event based on expert provided analysis modules. It concludes with an example of the data taken during first beam tests in September 2008 with a first version of the system.
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Poster
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WEP018 |
Software Applications for the Commissioning of the LHC Superconducting Circuits
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1 |
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- A. Vergara-Fernández, B. Bellesia, M. Pojer, A. Rijllart, R. I. Saban, R. Schmidt, M. Solfaroli Camillocci, J. Szkutnik, M. Zerlauth
CERN, Geneva
- C. Fernandez-Robles, A. Marqueta Barbero
IBERINCO, Madrid
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During the 2008 Hardware Commissioning phase of the Large Hadron Collider, the 1572 superconducting circuits of the accelerator were individually tested at different current levels before being released for operation with beam. Almost 12,000 tests had to be carried out in about six months, the performance of the different circuits analysed and the results stored. In order to cope with the schedule, manpower constrains and huge complexity of the systems under test, a set of software tools was developed during the last two years in order to automate as much as possible the preparation, execution, analysis and tracking of the tests. This paper outlines the different tools developed, describes their integration amongst themselves and within the whole Hardware Commissioning Project and details the overall performance and positive impact they have had on the different actors involved in these powering tests.
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THP097 |
RADE - A Rapid Application Development Framework Used for LHC Hardware Commissioning Tools and Other Accelerator Related Applications
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868 |
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- C. Charrondiere, O. O. Andreassen, D. Kudryavtsev, M. Nybo, A. Raimondo, H. Reymond, A. Rijllart, M. Zerlauth
CERN, Geneva
- S. Shaipov, R. Sorokoletov
JINR, Dubna, Moscow Region
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A set of tools has been developed for the LHC Hardware Commissioning to analyse and validate the electrical circuits, the powering systems and their associated protection equipment. The choice was made to develop these tools using a Rapid Application Development Framework based on LabVIEW, because it was the most suited to fulfill the requirements of flexibility, adaptability, quality, integration into the LHC accelerator control software and light maintenance. The framework and the developed tools are described, in particular the interfaces to C++ and Java, and we report on the experience of their use during the LHC Hardware Commissioning, together with two other examples of the use of RADE for very different applications: The CLIC Two-beam test stand viewer and the Multi-Alignment Control System.
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Poster
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