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1.
Increasing High Luminosity LHC Dynamic Aperture Using Optics Optimizations / De Maria, Riccardo (CERN) ; Angelis, Yannis (CERN ; Aristotle U., Thessaloniki) ; Droin, Colas (CERN) ; Kostoglou, Sofia (CERN) ; Plassard, Fabien (CERN) ; Sterbini, Guido (CERN) ; Tomás García, Rogelio (CERN)
CERN’s Large Hadron Collider (LHC) is expected to operate with unprecedented beam current and brightness from the beginning of Run 4 in 2029. In the context of the High Luminosity LHC project, the baseline operational scenarios are currently being developed. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 507-510 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.507-510
2.
Sextupole scheme optimization for HL–LHC / Plassard, Fabien ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN)
One essential upgrade of the High Luminosity LHC (HL–LHC) to reach the desired luminosity, is the large reduction of the β-function value at the interaction points (IP) hosting the high-luminosity experiments ATLAS and CMS. [...]
CERN-ACC-NOTE-2021-0012 ; CERN-ACC-2021-017.
- 2021.
Full text
3.
CERN Yellow Report Front Cover High-Luminosity Large Hadron Collider (HL-LHC): Technical design report / Aberle, O. ; Béjar Alonso, I (ed.) ; Brüning, O (ed.) ; Fessia, P (ed.) ; Rossi, L (ed.) ; Tavian, L (ed.) ; Zerlauth, M (ed.)
The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built [...]
CERN-2020-010. - Geneva : CERN, 2020. - 390 p. (CERN Yellow Reports: Monographs ; 10/2020)


ebook
4.
Tuning the ultralow $β^*$ optics at the KEK Accelerator Test Facility 2 / Yang, R (CERN) ; Pastushenko, A (CERN ; Orsay) ; Aryshev, A (KEK, Tsukuba ; Sokendai, Tsukuba) ; Bergamaschi, M (CERN) ; Cilento, V (CERN ; Orsay) ; Faus-Golfe, A (Orsay) ; Fukuda, M (KEK, Tsukuba ; Sokendai, Tsukuba) ; Korysko, P (CERN) ; Kubo, K (KEK, Tsukuba ; Sokendai, Tsukuba) ; Kuroda, S (KEK, Tsukuba ; Sokendai, Tsukuba) et al.
For future linear colliders, a nanometer-scale beam size at the interaction point (IP) is one of the most challenging technical aspects. To explore the feasibility of a final focus system with a high chromaticity level, comparable to that of the Compact Linear Collider, the ultralow β* optics has been proposed and tuned at the KEK Accelerator Test Facility 2. [...]
2020 - 11 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 071003 Fulltext from publisher: PDF;
5.
High Luminosity LHC optics and layout HLLHCV1.4 / De Maria, Riccardo (CERN) ; Bruce, Roderik (CERN) ; Gamba, Davide (CERN) ; Giovannozzi, Massimo (CERN) ; Plassard, Fabien (CERN)
The goal of the High Luminosity Project is the upgrade of the LHC to deliver an integrated luminosity of at least 250 fb$^{-1}$ per year in each of the two high-luminosity, general-purpose detectors ATLAS and CMS. This article presents the latest layout design and the corresponding optics features, which comprise optimisation of the orbit corrector and crab cavity systems, and new estimates of the performance reach thanks to the new concept of fully remote alignment. [...]
CERN-ACC-2019-140.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPMP019 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP019
6.
CERN Yellow Report Front Cover The Compact Linear Collider (CLIC) - 2018 Summary Report / Burrows, P.N. ; Catalan Lasheras, N. (ed.) ; Linssen, L. (ed.) ; Petrič, M. (ed.) ; Robson, A. (ed.) ; Schulte, D. (ed.) ; Sicking, E. (ed.) ; Stapnes, S. (ed.)
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear $e^+e^−$ collider under development at CERN [...]
arXiv:1812.06018 ; CERN-2018-005-M ; CERN-2018-005 CERN-2018-005-M ; CERN-2018-005. - 2018-12-14 - 112. (CERN Yellow Reports: Monographs ; 2/2018)


Publication
7.
Optics optimization of longer L* Beam Delivery System designs for CLIC and tuning of the ATF2 final focus system at ultra-low β* using octupoles / Plassard, Fabien
The future machines considered to carry out high precision physics in the TeV energy regime are electron-positron (e+e−) linear colliders [...]
CERN-THESIS-2018-223 - https://tel.archives-ouvertes.fr/tel-01893067 : HAL, 2018-10-13. - 166 p.

Fulltext
8.
Quadrupole-free detector optics design for the Compact Linear Collider final focus system at 3 TeV / Plassard, Fabien (CERN) ; Latina, Andrea (CERN) ; Marin, Eduardo (CERN) ; Tomás, Rogelio (CERN) ; Bambade, Philip (Orsay, LAL)
Aiming to simplify the machine detector interface of the Compact Linear Collider (CLIC), a new detector model has been designed allowing the last quadrupole QD0 of the final focus system (FFS) to be located outside of the experiment with a distance L* from the interaction point of 6 m. In this paper, the beam delivery system (BDS) has been reoptimized, offering a luminosity performance that exceeds the design requirements by 11% for the total luminosity and by 7% in the energy peak. [...]
2018 - 13 p. - Published in : Phys. Rev. Accel. Beams 21 (2018) 011002 Fulltext: PDF;
9.
Comparative Study of the Tuning Performances of the Nominal and Long L* CLIC Final Focus System at √s = 380 GeV / Plassard, F (CERN ; Orsay) ; Latina, A (CERN) ; Marin, E (CERN) ; Tomás, R (CERN)
Mitigation of static imperfections for emittance preservation is one of the most important and challenging tasks faced by the Compact Linear Collider (CLIC) beam delivery system. A simulation campaign has been performed to recover the nominal luminosity by means of different alignment procedures. [...]
2017 - 9 p. - Published in : 10.23727/CERN-Proceedings-2017-001.29 Published version from CERN: PDF;
In : CERN-BINP Workshop for Young Scientists in $e^{+}e^{-}$ Colliders, CERN, Geneva, Switzerland, 22 - 25 Aug 2016, pp.29-36
10.
Tuning Simulations for the CLIC Traditional Beam Delivery System / Bodenstein, Ryan (JAI, UK) ; Burrows, Philip (JAI, UK) ; Marín, Eduardo (CERN) ; Plassard, Fabien (CERN) ; Tomás, Rogelio (CERN)
As the design of the CLIC Beam Delivery System (BDS) evolves, tuning simulations must be performed on each of the proposed lattice designs to see which system achieves the highest luminosity in the most realistic manner. This work will focus on the tuning simulations performed on the so-called Traditional lattice design for the center-of-mass energy of 3 TeV. [...]
CERN-ACC-2017-131; CLIC-Note-1118.- 2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-MOPIK108 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK108

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13 Plassard, Fabien
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