Keyword: dumping
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MOPGF135 Upgrade of the Trigger Synchronisation and Distribution System of the Beam Dumping System of the Large Hadron Collider operation, controls, kicker, hardware 1
  • N. Magnin, A. Antoine, E. Carlier, V. Chareyre, S. Gabourin, A. Patsouli, N. Voumard
    CERN, Geneva, Switzerland
  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. This paper summarises the changes performed on the TSDS during LS1, highlights the upgrade of the IPOC systems and presents the problems encountered during the commissioning of TSDS before the LHC Run II.  
poster icon Poster MOPGF135 [0.948 MB]  
WEPGF047 Smooth Migration of CERN Post Mortem Service to a Horizontally Scalable Service controls, distributed, framework, operation 1
  • J.C. Garnier, C. Aguilera-Padilla, S. Boychenko, M. Dragu, M.A. Galilée, M. Koza, K.H. Krol, T. Martins Ribeiro, R. Orlandi, M.C. Poeschl, M. Zerlauth
    CERN, Geneva, Switzerland
  The Post Mortem service for CERNs accelerator complex stores and analyses transient data recordings of various equipment systems following certain events, like a beam dump or magnet quenches. The main purpose of this framework is to provide fast and reliable diagnostic to the equipment experts and operation crews to decide whether accelerator operation can continue safely or whether an intervention is required. While the Post Mortem System was initially designed to serve CERNs Large Hadron Collider (LHC), the scope has been rapidly extended to include as well External Post Operational Checks and Injection Quality Checks in the LHC and its injector complex. These new use cases impose more stringent time-constraints on the storage and analysis of data, calling to migrate the system towards better scalability in terms of storage capacity as well as I/O throughput. This paper presents an overview on the current service, the ongoing investigations and plans towards a scalable data storage solution and API, as well as the proposed strategy to ensure an entirely smooth transition for the current Post Mortem users.  
poster icon Poster WEPGF047 [1.449 MB]