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Mechanical Consolidation of the LHC Inner Triplet Magnet Supporting System for Remote Alignment
/ Micolon, Frederic (CERN) ; Bourcey, Nicolas (CERN) ; Deschamps, Jean-Baptiste (CERN) ; Herty, Andreas (CERN) ; Le Naour, Sandrine (CERN) ; Mikkola, Tommi (CERN) ; Parma, Vittorio (CERN) ; Ramos, Delio (CERN) ; Rude, Vivien (CERN) ; Sosin, Mateusz (CERN)
Given the high radiation area and the tight alignment tolerances, the LHC inner triplet magnets were designed to be realigned remotely using motorized supporting jacks. However, during run 2 the LHC triplet realignment system started to show an unexpected behavior with erratic load variations on the magnet supporting jacks when operated [...]
Geneva : JACoW, 2021 - 3 p.
- Published in : JACoW IPAC 2021 (2021) 2207-2209
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2207-2209
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2.
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HL-LHC Alignment Requirements and Associated Solutions
/ Mainaud Durand, Helene (CERN) ; Bartolome-Jimenez, Sonia (CERN) ; Dijoud, Thibault (CERN) ; Duquenne, Mathieu (ESGT, Le Mans) ; Herty, Andreas (CERN) ; Rude, Vivien (ESGT, Le Mans) ; Sosin, Mateusz (CERN)
To increase by more than 10 times the luminosity reach w.r.t the first 10 years of the LHC lifetime, the HL-LHC project will replace nearly 1.2 km of the accelerator during the Long Shutdown 3 scheduled in 2024 [1][2][3]. This paper presents the HL-LHC alignment and internal metrology requirements of all the new components to be installed, from the magnet components to the beam instrumentation and vacuum devices. [...]
CERN-ACC-2017-138.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPIK085
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPIK085
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3.
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Robust Optical Instrumentation for Accelerator Alignment Using Frequency Scanning Interferometry
/ Sosin, Mateusz (CERN) ; Mainaud Durand, Helene (CERN) ; Micolon, Frederic (CERN) ; Rude, Vivien (CERN) ; Rutkowski, Jaroslaw M (CERN)
The precise alignment of components inside particle accelerators is an important engineering challenge in high-energy physics. Optical interferometry, being a precise, optical distance measurement technique, is often a method of choice in such applications. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2203-2206
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2203-2206
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4.
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Frequency Scanning Interferometry as New Solution for on-Line Monitoring Inside a Cryostat for the HL-LHC project
/ Mainaud Durand, Helene (CERN) ; Dijoud, Thibault (CERN) ; Duquenne, Mathieu (CERN ; Unlisted, FR) ; Gayde, Jean-Christophe (CERN) ; Micolon, Frederic (CERN) ; Rude, Vivien (CERN ; Unlisted, FR) ; Sosin, Mateusz (CERN)
For the HL-LHC project, the cryostats of the key components will be equipped permanently with an on-line position monitoring system based on Frequency Scanning Interferometry (FSI). Such a system, based on absolute distance measurement, will determine the position of the inner triplet cold masses w.r.t. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-WEPAF068
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF068
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6.
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Integration and Testing of 3 Consecutive CLIC Two-Beam Modules
/ Vamvakas, Alexios (CERN) ; Aicheler, Markus (Helsinki Inst. of Phys.) ; Döbert, Steffen (CERN) ; Duquenne, Mathieu (CERN) ; Mainaud Durand, Helene (CERN) ; Rude, Vivien (Unlisted, FR) ; Sosin, Mateusz (CERN) ; Väinölä, Jukka (Helsinki Inst. of Phys.)
CLIC (Compact LInear Collider) is a study of a 50 km long linear electron-positron collider, consisting of ap-proximately 20,000 repetitive 2 m long modules. Micron level manufacturing and alignment tolerances are re-quired for the RF and magnet components due to the nanometre beam size and luminosity goal. [...]
CERN-ACC-2016-145; CLIC-Note-1103.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR033
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR033
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7.
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The New CLIC Main Linac Installation and Alignment Strategy
/ Mainaud Durand, Helene (CERN) ; Gayde, Jean-Christophe (CERN) ; Jaros, Jakub (CERN) ; Rude, Vivien (CERN) ; Sosin, Mateusz (CERN) ; Zemanek, Anna (CERN)
A complete solution was proposed for the pre-alignment of the CLIC main linac in 2012 for the Conceptual Design Report. Two recent studies provide new perspectives for such a pre-alignment. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-WEPAF066
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF066
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8.
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Position Monitoring System for HL-LHC Crab Cavities
/ Sosin, Mateusz (CERN) ; Dijoud, Thibault (CERN) ; Mainaud Durand, Helene (CERN) ; Rude, Vivien (Unlisted, FR)
The high luminosity upgrade for the LHC at CERN (HL-LHC project) will extend the discovery potential of the LHC by a factor 10. It relies on key innovative technologies like superconducting cavities for beam rotation, named 'crab cavities'. [...]
CERN-ACC-2016-197.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-WEPOR018
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPOR018
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10.
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HL-LHC full remote alignment study
/ Herty, Andreas (CERN) ; De Maria, Riccardo (CERN) ; Fessia, Paolo (CERN) ; Gamba, Davide (CERN) ; Giovannozzi, Massimo (CERN) ; Hansen, Jan (CERN) ; Lamas Garcia, Inigo (CERN) ; Mainaud Durand, Helene (CERN) ; Redaelli, Stefano (CERN)
This study explores the benefits of extending the monitoring and remote alignment concept, proposed in the HL-LHC baseline, to additional components of the matching sections of the HL-LHC. The objective of this study was to evaluate the benefits in terms of equipment performance and new opportunities for system simplification. [...]
CERN-ACC-2019-245.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPGW057
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW057
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