1.
|
General Technical Services: Overview, Improvements, Remaining Issues
/ Serio, L (CERN)
The technical services have contributed to the performances of the LHC machine.
TIOC has been instrumental in analyzing events, propose consolidations and
coordinating interventions to minimize downtime and improve performances. The
presentation will provide an overview of the most significant TIOC actions and
summarize technical services overall availability and reliability. [...]
Geneva, Switzerland : , 2019 - 6 p.
- Published in : , pp. 79-84
Fulltext: PDF;
In : 9th LHC Operations Evian Workshop, Evian Les Bains, France, 30 Jan - 1 Feb 2019, pp.79-84
|
|
2.
|
Technical Services: Unavailability Root Causes, Strategy and Limitations
/ Nielsen, J (CERN) ; Serio, L (CERN)
CERN's technical infrastructure is a common root cause source of unavailability impacting the accelerators, injectors, experiments and the computer center. The Technical Infrastructure Operation Committee (TIOC) monitors, analyses and coordinates the technical infrastructure operation in order to increase the overall availability of the LHC. [...]
Geneva : CERN, 2017 - 4 p.
- Published in : (2017) , pp. 59-62
Fulltext: PDF;
In : 7th Evian Workshop on LHC beam operation, Evian Les Bains, France, 13 - 15 Dec 2016, pp.59-62
|
|
3.
|
Outsourcing strategy and tendering methodology for the operation and maintenance of CERN’s cryogenic facilities
/ Serio, L (CERN) ; Bremer, J (CERN) ; Claudet, S (CERN) ; Delikaris, D (CERN) ; Ferlin, G (CERN) ; Ferrand, F (CERN) ; Pezzetti, M (CERN) ; Pirotte, O (CERN)
CERN operates and maintains the world largest cryogenic infrastructure ranging from ageing but well maintained installations feeding detectors, test facilities and general services, to the state-of-the-art cryogenic system serving the flagship LHC machine complex. A study was conducted and a methodology proposed to outsource to industry the operation and maintenance of the whole cryogenic infrastructure. [...]
2017 - 8 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 278 (2017) 012115
Fulltext: PDF;
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012115
|
|
4.
|
Injectors: Unavailability by machine, root causes, strategy and limitations
/ Mikulec, B (CERN) ; Kain, V (CERN)
During the 2016 LHC proton un the main contributor to LHC downtime turns out to be the LHC injector chain. In this paper the corresponding LHC downtime will be assigned to either Linac2, the Proton Synchrotron Booster (PSB), the Proton Synchrotron (PS) or the Super Proton Synchrotron (SPS). [...]
Geneva : CERN, 2017 - 6 p.
- Published in : (2017) , pp. 63-68
Fulltext: PDF;
In : 7th Evian Workshop on LHC beam operation, Evian Les Bains, France, 13 - 15 Dec 2016, pp.63-68
|
|
5.
|
Availability 2017: Injectors
/ Mikulec, B (CERN)
For the first year the Accelerator Fault Tracker (AFT) was implemented and
employed by the Large Hadron Collider (LHC) injectors. In this paper, the LHC
downtime due to the injector chain will be analysed with data from AFT and
compared to last year [1] [...]
2019 - 4 p.
- Published in : (2019) , pp. 51-54
Fulltext: PDF;
In : 8th Evian Workshop on LHC beam operation, Evian Les Bains, France, 12 - 14 Dec 2017, pp.51-54
|
|
6.
|
LHC Vacuum System: 2012 Review and 2014 Outlook
/ Lanza, G (CERN) ; Baglin, V (CERN) ; Bregliozzi, G (CERN) ; Jimenez, J M (CERN)
During 2012 only a few beam dumps were attributed to vacuum sector valve
closures and the vacuum surface and coating group was involved in only two
urgent interventions that kept the beam off for less than two days each. In this
paper the pressure threshold policy adopted since the beginning of the LHC
running is examined in terms of beam vacuum performances and beam dumps. [...]
Geneva : CERN, 2012 - 6 p.
- Published in : (2012) , pp. 139-144
Fulltext: PDF;
In : 4th Evian Workshop on LHC beam operation, Evian-les-Bains, France, 17 - 20 Dec 2012, pp.139-144
|
|
7.
|
Consolidation on civil engineering and technical infrastructure
/ Alves, P (CERN) ; Nonis, M (CERN) ; Pepinster, P (CERN) ; van Baaren, W (CERN)
The use and age of the civil engineering structure (office buildings, halls, tunnels) and of tertiary technical equipment (mainly HVAC and electricity) at CERN is such that their renovation must be considered in the near future. Due to the large number of buildings and equipment in these conditions, and the restricted budget available it is extremely important to define priorities. [...]
ST-Note-2003-044.-
2003
Fulltext: PDF;
In : 6th ST Workshop, Thoiry, France, 1 - 3 Apr 2003, pp.e-page 044
|
|
8.
|
Run 2 Overview of the LHC Beam Instrumentation
/ Krupa, M (CERN) ; Alves, D (CERN) ; Gasior, M (CERN) ; Kral, J (CERN) ; Levens, T (CERN) ; Schramm, V (CERN) ; Wendt, M (CERN) ; Zamantzas, C (CERN)
This papers reviews the implemented improvements, operational experience, and
performance reach of the major LHC Beam Instrumentation systems, excluding
transverse beam profile diagnostics, throughout the LHC Run 2. The major
hardware and software changes since the Long Shutdown 1 (LS1) are highlighted
and the main actions addressing the remaining open issues during the Long
Shutdown 2 (LS2) are listed. [...]
Geneva, Switzerland : , 2019 - 5 p.
- Published in : , pp. 111-115
Fulltext: PDF;
In : 9th LHC Operations Evian Workshop, Evian Les Bains, France, 30 Jan - 1 Feb 2019, pp.111-115
|
|
9.
|
|
10.
|
A Smart Framework for the Availability and Reliability Assessment and Management of Accelerators Technical Facilities
/ Serio, Luigi (CERN) ; Antonello, Federico (Milan, Polytech.) ; Baraldi, Piero (Milan, Polytech.) ; Castellano, Andrea (CERN ; Milan, Polytech.) ; Gentile, Ugo (CERN) ; Zio, Enrico (Milan, Polytech.)
CERN operates and maintains a large and complex technical infrastructure that serves the accelerator complex and experiments detectors. A performance assessment and enhancement framework based on data mining, artificial intelligence and machine-learning algorithms is under development with the objective of structuring, collecting and analysing the operation and failure data of the systems and equipment, to guide the identification and implementation of adequate corrective, preventive and consolidation interventions. [...]
2018 - 4 p.
- Published in : (2018) , pp. WEPAF079
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 072029
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF079
|
|