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Project management structures, processes, and tools for the HL-LHC project
/ Vandoni, Giovanna (CERN) ; Brüning, Oliver (CERN) ; Di Girolamo, Beniamino (CERN) ; Fessia, Paolo (CERN) ; Garcia Gavela, Hector (CERN) ; Jensen, Lars (CERN) ; Modena, Michele (CERN) ; Noels, Cecile (CERN) ; Tavian, Laurent (CERN) ; Zerlauth, Markus (CERN)
At its restart after a major shutdown in 2029, the LHC will see its interaction regions upgraded by the installation of the HL-LHC equipment, with new Nb3Sn triplets and cold powering system, crab-cavities for crossing angle compensation and luminosity levelling, an upgraded collimation system, and fully remote alignment for the final focusing region. In the following operational runs, the LHC will aim at a tenfold increase of the integrated luminosity compared to the original design. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) TUPA154
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA154
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Budget, procurement and risk management for the HL-LHC project
/ Vandoni, G (CERN) ; Augier, A (CERN) ; Garcia Gavela, H (CERN) ; Jensen, L (CERN) ; Brozda, L (CERN) ; Quain Solis, L (CERN) ; Zerlauth, M (CERN) ; Rodriguez Perez, M (CERN) ; Brüning, O (CERN) ; Guillen Humbria, V (CERN)
The HL-LHC project covers the upgrade of the LHC, aiming at collecting an integrated luminosity of 3000 fb-1 equal to a 10-fold increase of the nominal LHC performance. Approved in 2016 for a 950 MCHF budget, the project is shaped by 19 work-packages, covering all expertise areas, from beam dynamics to technical infrastructures. [...]
2023 - 3 p.
- Published in : JACoW IPAC 2023 (2023) TUPA155
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA155
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Maintenance Cost Working Group Results
/ Bailom, Florian (CERN) ; Bossy, Jordi (CERN) ; Chareyre, Vincent (CERN) ; Deleval, Serge (CERN) ; Jensen, Lars (CERN) ; Lafarge, Damien (CERN) ; Langlois, Raphael (CERN) ; Naisson, Pierre ; Nunes, Rui (CERN)
For the proper functioning of Accelerators, Experimental areas, Workshops and other CERN facilities, maintenance of infrastructure is one of the main activities in the EN department [...]
CERN-ACC-NOTE-2022-0042.
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2022. - 4 p.
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Towards in vivo applications of 111Ag perturbed angular correlation of γ-rays (PAC) spectroscopy
/ Tosato, Marianna (U. Padua (main)) ; Asti, Mattia ; Di Marco, Valerio (U. Padua (main)) ; Jensen, Marianne L (Bohr Inst.) ; Schell, Juliana (CERN ; U. Duisburg-Essen) ; Dang, Thien Thanh (U. Duisburg-Essen) ; Köster, Ulli (Laue-Langevin Inst.) ; Jensen, Mikael (Denmark, Tech. U.) ; Hemmingsen, Lars (U. Copenhagen (main))
$^{111}$Ag-perturbed angular correlation of γ-rays (PAC) spectroscopy provides information on the nuclear quadrupole interactions, and thereby on the local structure and dynamics of the silver ion binding site. Brownian rotational motion, i.e. [...]
2022 - 8 p.
- Published in : Appl. Radiat. Isot. 190 (2022) 110508
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EN Newsletter Issue #4 - Sep 2022
/ Jensen, Lars (CERN)
Inside this issue: Editorial - Lars Jensen, MACHINA project - Serge Mathot, Aidforall.ch - Chris Thomas and Connie Potter, Réveil de la sûreté nucléaire : nouvelle norme ISO 19443 - Pierre Ninin, Radio-luminescent optical fibres for dosimetry applications in accelerators and space - Nourdine Kerboub, Diego Di Francesca and Daniel Ricci
CERN-EN-Note-2022-001.
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2022. - 8 p.
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Electromagnetic Modelling of Kicker Magnets to Derive Equivalent Circuits
/ Barnes, Michael J (CERN) ; Bjorkqvist, Oskar (CERN) ; Jensen, Lars (CERN ; Aarhus U.) ; Nielsen, Oliver (CERN ; Aarhus U.)
An equivalent circuit model of a kicker magnet system is an invaluable tool for predicting the performance, studying possible modifications and for helping to diagnose faults. The frequency content of pulses associated with a ferrite loaded transmission line kicker magnet generally extend up to a few tens of MHz: hence, it is feasible to accurately model such a kicker magnet using lumped elements. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC '21 (2021) 3506-3509
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3506-3509
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EN Newsletter Issue #2 - 21 June 2021
/ Jensen, Lars (CERN)
Inside this issue: Page 1: Editorial - Lars Jensen, DAO corner – Rachelle Decreuse-Michaud, Safety risk analysis - EN Safety office, Analyse des risques - Service Sécurité EN, Scheduling Tools Project – Julie Coupard and Antoine Ansel, Pollution Dispersion Simulations with ANSYS Fluent in the CFD Team – Uwe Kauflin , Optical fibre sensing technology - Diego Di Francesca and Daniel Ricci, Infor EAM: Asset & Maintenance Management Platform at CERN – David Widegren, Additive Manufacturing, let your imagination take over! - Gilles Favre and Romain Gérard
CERN-EN-Note-2021-002.
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2968. - 11 p.
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A reference compound for $^{199m}$ Hg perturbed angular correlation of $\gamma$ -rays spectroscopy
/ Jancsó, Attila (Szeged U.) ; Correia, Joao G (Lisbon, IST ; CERN) ; Balogh, Ria K (Szeged U.) ; Schell, Juliana (Duisburg-Essen U. ; CERN) ; Jensen, Marianne L (Bohr Inst.) ; Szunyogh, Daniel (Copenhagen U.) ; Thulstrup, Peter W (Copenhagen U.) ; Hemmingsen, Lars (Copenhagen U.)
$^{199m}$ Hg is a very useful probe for perturbed angular correlation of $\gamma$ -rays (PAC) spectroscopy. Here we present $^{199m}$ Hg PAC data for a Hg $^{2+}$ containing compound, Hg(Cys)$_{2}$(s), giving one unique nuclear quadrupole interaction (NQI). [...]
2021
- Published in : Nucl. Instrum. Methods Phys. Res., A 1002 (2021) 165154
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