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Mark Andrew Thomson05/06/2023, 08:30Oral presention (by invitation only)
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Fabiola Gianotti (CERN)05/06/2023, 08:45Oral presention (by invitation only)
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Eliezer Rabinovici (Weizmann Institute of Science (IL))05/06/2023, 09:05Oral presention (by invitation only)
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Guy Wilkinson (University of Oxford (GB))05/06/2023, 09:20Oral presention (by invitation only)
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Gavin Salam (University of Oxford)05/06/2023, 09:25Oral presention (by invitation only)
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Michael Benedikt (CERN)05/06/2023, 10:55Oral presention (by invitation only)
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Johannes Gutleber (CERN)05/06/2023, 11:20Oral presention (by invitation only)
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Timothy Paul Watson (CERN)05/06/2023, 11:55Oral presention (by invitation only)
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Tor Raubenheimer (SLAC National Accelerator Laboratory (US))05/06/2023, 14:00Oral presention (by invitation only)
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Klaus Hanke (CERN)05/06/2023, 15:00Oral presention (by invitation only)
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Matthew Philip Mccullough (CERN)05/06/2023, 16:00
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Janusz Gluza (University of Silesia (PL))05/06/2023, 16:20Oral presention (by invitation only)
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Michele Selvaggi (CERN)05/06/2023, 16:40Oral presention (by invitation only)
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Dr Katsunobu Oide (Universite de Geneve (CH))06/06/2023, 08:30Oral presention (by invitation only)
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Christoph Paus (Massachusetts Inst. of Technology (US))06/06/2023, 08:30Oral presention (by invitation only)
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Johannes Gutleber (CERN)06/06/2023, 08:30
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Patrycja Laidouni (CERN), Pierre Boillon, Mr Pierre Boillon (Cerema)06/06/2023, 09:00Oral presention (by invitation only)
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Pier Francesco Monni (CERN)06/06/2023, 09:00
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Yann Dutheil (CERN)06/06/2023, 09:00
The FCC-ee collider requires continuous injection not only to maximize the average luminosity but also to ensure the stability of the beams by maintaining the charge of colliding bunches. The full energy booster will accelerate electron and positron beams to the collider energy which will then be injected into the collider ring.
Several schemes are being studied but a conventional top-up...
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Krzysztof Piotrzkowski (AGH University of Science and Technology (PL))06/06/2023, 09:30
A good understanding of radiative Bhabha scattering at high energy e+e- colliders is important as it might become the limiting factor for the beam lifetimes. In this talk, the impact of beam-size effects will be presented, in particular the strong suppression of the radiative Bhabha scattering due to small lateral beam sizes at the interaction points. The resulting beam lifetime limits will be...
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Sophie Alice Renner (University of Glasgow (GB))06/06/2023, 09:30Oral presention (by invitation only)
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Mr Charles Barre (EGIS), Mr Tristan Halle (EGIS)06/06/2023, 09:30Oral presention (by invitation only)
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Guy Wilkinson (University of Oxford (GB))06/06/2023, 09:45
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Richard Charles Farrow06/06/2023, 09:50
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Michael Benedikt (CERN)06/06/2023, 10:00
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Timothy Paul Watson (CERN)06/06/2023, 10:20
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Luisa Ulrici (CERN)06/06/2023, 10:30Oral presention (by invitation only)
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Andrey Abramov (CERN)06/06/2023, 10:30
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Jorge de Blas (Universidad de Granada (ES))06/06/2023, 10:30
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Antonio Perillo Marcone (CERN)06/06/2023, 10:50
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Amael Damien Paillex (ECOTEC ENVIRONNEMENT SA), Mr Amael Paillex (Ecotec)06/06/2023, 11:00Oral presention (by invitation only)
In the context of the feasibility study of the future FCC, the objectives are:
- To investigate the current environmental conditions for the temporary use of the soil for drilling boreholes and to investiguate seismic lines.
- To investigate the current environmental conditions of future surface sites.
All preliminary results will be presented, including stakes for birds, frogs and...
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Jernej F. Kamenik06/06/2023, 11:00Oral presention (by invitation only)
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Jean-Paul Burnet (CERN)06/06/2023, 11:05
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Mauro Migliorati06/06/2023, 11:10
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Antoine Mayoux (CERN)06/06/2023, 11:30
This presentation will give a brief description of the locations of subsurface investigations for FCC Feasibility Study and how it's being sharpened according to legal context and environmental concerns.
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Juraj Smiesko (CERN)06/06/2023, 11:30Oral presention (by invitation only)
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Olivier Brunner (CERN)06/06/2023, 11:30
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Luca Sabato (EPFL - Ecole Polytechnique Federale Lausanne (CH))06/06/2023, 11:35
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Anders Unnervik (CERN)06/06/2023, 11:55
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06/06/2023, 12:20
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Fani Valchkova-Georgieva (Bulgarian Academy of Sciences (BG))06/06/2023, 13:30
Following up the updates on RF section studies, the integration studies focus on a new integration scenario where the Collider RF elements (400MHz and 800 MHz cryogenics modules) will be installed at point H, and Booster RF elements (800 MHz cryogenics modules) will be installed at point L. The integration studies is taking into account boundaries in term of space limitations and design...
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Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))06/06/2023, 13:30MDI (Machine Detector Interface)Oral presention (by invitation only)
The design of the interaction region of the positron-electron future circular collider must comply with various important constraints, imposed by high beam energy, high luminosity, need for polari-zation, and crossing scheme. An overview of the MDI design will be presented with a picture of the recent updates in the layout and ongoing studies. The status of the MDI activity will be summarised...
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Gerhard Streicher (WIFO)06/06/2023, 13:30Oral presention (by invitation only)
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Fabrizio Palla (Universita & INFN Pisa (IT))06/06/2023, 13:45MDI (Machine Detector Interface)Oral presention (by invitation only)
The Future Circular Collider FCC-ee aims at unprecedented luminosities to be obtained with the crab-waist collision scheme. In this talk we will describe the mechanical model of the interaction region layout including its assembly procedure.
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After a discussion on the requirements and constraints, we will present the engineered design of the vacuum chamber with the cooling system, the... -
Boyan-Kaloyanov Naydenov Popov (CERN)06/06/2023, 13:48
Having reached the middle of its 5-year duration, the FCC Feasibility Study is now heading towards its mid-term review, which will take place in Fall’23. The aim of this study is to propose a concrete design for the accelerator, serving as input for the next ESPP Update in 2026/2027. The major layout update of early 2022, which reduced the overall length of the machine as well as its total...
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Irene Del Rosario Crespo Garrido (Universidade de Santiago de Compostela (ES))06/06/2023, 13:55
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Armin Ilg (University of Zurich)06/06/2023, 14:05MDI (Machine Detector Interface)Oral presention (by invitation only)
A plethora of measurements at the FCC-ee crucially depend on efficient flavour tagging and precise flight distance measurements. To achieve this, the innermost piece of the FCC-ee detectors, the vertex detector, has to precisely locate the collision vertices, while adding only a minimal amount of material to the detector to limit multiple scattering deteriorating the detector...
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Davide Aguglia (CERN)06/06/2023, 14:06
The RF systems of the FCCee are expected to be the primary consumers of power and energy. Moreover, the staged approach, ranging from Z to TTbar, necessitates modifications in the RF production method involving klystrons and solid-state devices, posing challenges for the powering infrastructure.
This presentation will outline the RF powering requirements for each stage, including power...
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Irene Del Rosario Crespo Garrido (Universidade de Santiago de Compostela (ES))06/06/2023, 14:20
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Inigo Martin Melero (CERN)06/06/2023, 14:24
The FCC RF areas will be a major challenge from a cooling and ventilation point of view, as these points contain the highest concentration of thermal loads in the entire FCC complex. The total thermal load will depend primarily on the efficiency of the klystrons (currently being upgraded) and of the cryogenic systems. The location of the cryogenic systems will also determine the number and...
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Francesco Fransesini06/06/2023, 14:25MDI (Machine Detector Interface)Oral presention (by invitation only)
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Vittorio Parma (CERN)06/06/2023, 14:42
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Dr Florian Sonnemann (CERN)06/06/2023, 14:45Oral presention (by invitation only)
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Laurent Brunetti (Centre National de la Recherche Scientifique (FR))06/06/2023, 14:45MDI (Machine Detector Interface)Oral presention (by invitation only)
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Fani Valchkova-Georgieva (Bulgarian Academy of Sciences (BG))06/06/2023, 15:30
After collecting updated requirements from the different stakeholders (cooling, HVAC, electrical supply, transport, safety systems, and machine systems), the integration studies evolved into optimizing the space in the underground infrastructures. The 3D integration models, and layout configurations were updated wrt these updated requirements for the FCC into the tunnel and the arcs, the...
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Gabriele Piazza06/06/2023, 15:30Oral presention (by invitation only)
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Hiroyuki NAKAYAMA06/06/2023, 15:30MDI (Machine Detector Interface)Oral presention (by invitation only)
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Giacomo Broggi (Sapienza Università di Roma e INFN Laboratori Nazionali di Frascati (IT))06/06/2023, 15:50MDI (Machine Detector Interface)Oral presention (by invitation only)
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Charline Marcel (CERN)06/06/2023, 15:52
The present base line features a 91 km circumference tunnel with eight access points. There will be a number of alcoves distributed around the ring, used to host equipment that needs to be shielded from radiation (e.g. racks, power supplies …) and aimed to deserve a part of FCC tunnel.
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In 2022 the known requirements of the systems expected to be installed in the alcoves have been identified... -
Francesco Giffoni06/06/2023, 16:00Oral presention (by invitation only)
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Kevin Daniel Joel Andre (CERN)06/06/2023, 16:05MDI (Machine Detector Interface)Oral presention (by invitation only)
The FCC-ee is a high-luminosity circular electron-positron which will have beam energies ranging from 45.6 ($\rm{Z}$ mode) to 182.5 GeV ($\rm{t\bar{t}}$ mode). In this presentation, the synchrotron radiation sources associated to each operating energy are described. The performances of the synchrotron radiation collimation scheme are detailed including the contribution from particles in the...
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Guillermo Peon (CERN)06/06/2023, 16:15
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Andrea Ciarma (INFN e Laboratori Nazionali di Frascati (IT))06/06/2023, 16:25MDI (Machine Detector Interface)Oral presention (by invitation only)
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Dr Emanuela Sirtori (CSIL), Johannes Gutleber (CERN)06/06/2023, 16:30FCCIS WP4 (Impact & sustainability)
This presentation provides an update on the results of the socio-economic impact analysis of the FCC-ee infrastructure. It draws from extensive research conducted between March 2020 and April 2023 by a collaboration of economists, data scientists, engineers, and policy analysts. The benefits expected to be generated during the FCC project construction and operation phases are identified and...
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Guillermo Peon (CERN)06/06/2023, 16:37
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Alessandro Frasca (University of Liverpool (GB)), Dr Giuseppe Lerner (CERN)06/06/2023, 16:45MDI (Machine Detector Interface)Oral presention (by invitation only)
This talk will provide an overview of the radiation environment and dose studies for the experimental Interaction Region (IR) of FCC-ee. In particular, first considerations and studies for the photon (Beamstrahlung) dump will be presented.
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Thibaut Lefevre (CERN)07/06/2023, 08:30
This talk will present an overview on the beam instrumentation for the FCCee accelerator complex. The specifications and main challenges for the FCCee beam instrumentation will be discussed. A status on the on-going R&D activities will be also reported, together with the plans for future studies.
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Andrea Perez Fernandez (CERN)07/06/2023, 08:30Oral presention (by invitation only)
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Jan Eysermans (Massachusetts Inst. of Technology (US))07/06/2023, 08:30
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Carl Jaermyr Eriksson (CERN), Jeremie Bauche (CERN), Luke Von Freeden (CERN), farhad saeidi (ILSF/IPM)07/06/2023, 08:30
The inter-beam distance in the collider arcs has recently been increased to accommodate the latest design of the SR absorbers in the dipoles. This has led to a modification of the magnet designs, taking advantage of the larger distance between apertures to try minimizing both the aperture coupling in the quadrupoles, and the saturation in the sextupoles.
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The presentation will summarize the... -
Louis Portales (CNRS/IN2P3 - LLR, École Polytechnique)07/06/2023, 08:45Physics, Experiments & Detectors
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Domitille Arrivet07/06/2023, 08:50Oral presention (by invitation only)
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Tor Raubenheimer (SLAC National Accelerator Laboratory (US))07/06/2023, 08:55
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Loukas Gouskos (CERN)07/06/2023, 09:00Physics, Experiments & Detectors
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Mr Iacopo Faggiani (TELT)07/06/2023, 09:10Oral presention (by invitation only)
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Rogelio Tomas Garcia (CERN)07/06/2023, 09:10Oral presention (by invitation only)
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m Koratzinos (Paul Scherrer Institute (CH))07/06/2023, 09:10
The FCC-ee HTS4 project studies the possibility of replacing all (warm) short straight sections of FCC-ee with superconducting ones. There are about 2900 short straight sections in the arcs of FCC-ee housing arc quadrupoles, sextupoles and various corrector magnets. In the conceptual design report design, all these magnets are normal-conducting with an important footprint in the overall...
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Patrick Janot (CERN)07/06/2023, 09:15
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Jacqueline Keintzel (CERN)07/06/2023, 09:25
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Sophy Palmer (STFC)07/06/2023, 09:30Oral presention (by invitation only)
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Kathleen Amm07/06/2023, 09:35
From the time of the Brookhaven Summer Study in the summer of 1968 to the present day, Brookhaven National Laboratory’s (BNL’s) Magnet Division has developed advanced technology in support of science and US industry. Magnet Division is a world class magnet development facility which can provide full solutions from modeling, design, robust magnet engineering, and state of the art magnet...
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Lars Rohrig (Technische Universitaet Dortmund (DE))07/06/2023, 09:37
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Leon Van Riesen-Haupt (EPFL - Ecole Polytechnique Federale Lausanne (CH))07/06/2023, 09:45
n this talk, we will discuss the critical role of insertion region (IR) tuning tools in the successful simulation and operation of the FCC. Due to the complex design and challenging nature of the FCC, these tools are essential for achieving sufficient luminosity and machine stability. Collaboration with experts in the field is important for designing effective IR tuning tools that meet the...
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07/06/2023, 09:50Oral presention (by invitation only)
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Mr Laban Coblentz (ITER)07/06/2023, 10:30Oral presention (by invitation only)
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Tristan Miralles (Université Clermont Auvergne (FR))07/06/2023, 10:30
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Dr Antoine Chance (CEA Irfu)07/06/2023, 10:30Oral presention (by invitation only)
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Bernhard Auchmann (PSI/CERN)07/06/2023, 10:30
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Matthew William Kenzie (University of Warwick (GB))07/06/2023, 10:45
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Paolo Craievich07/06/2023, 10:50
In this contribution we will give an overview of the pre-injector complex by introducing the baseline and the different options studied in recent months.
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Mr William Garnier (SKA)07/06/2023, 10:50Oral presention (by invitation only)
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Alberto Lusiani (Scuola Normale Superiore and INFN, sezione di Pisa)07/06/2023, 11:00
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Soren Prestemon07/06/2023, 11:00
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Dr Iryna Chaikovska (CNRS/IJCLab)07/06/2023, 11:10Oral presention (by invitation only)
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Arnaud Marsollier (CERN)07/06/2023, 11:10Oral presention (by invitation only)
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Sarah Louise Williams (University of Cambridge (GB))07/06/2023, 11:15
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Ramiro Francisco Mena Andrade07/06/2023, 11:25
The FCC-ee positron source target is the device in charge of generating particles (i.e. positrons) by colliding a high intensity primary electron beam on it, which produces gamma rays and triggers the pair production mechanism.
At a design level, the positron target presents two main challenges: i) a high-energy deposition density due partly to a small incident beam size and ii) the...
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Dr Amalia Ballarino (CERN)07/06/2023, 11:30
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Mr Markus Mooslechner07/06/2023, 11:30Oral presention (by invitation only)
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Nicolo Valle (INFN Sezione di Pavia (IT))07/06/2023, 11:37
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Catia Milardi (Istituto Nazionale di Fisica Nucleare (INFN))07/06/2023, 11:40Oral presention (by invitation only)
The Future Circular Collider project is built around two main pillars: the construction of 100 km lepton collider running at increasing energies from the Z-pole to the t-tbar threshold (FCC-ee) followed by a hadron collider in the same tunnel (FCC-hh) to explore unprecedented energy frontier.
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The realization of FCC-ee relies on a very challenging injector complex that should provide the... -
Liam Bromiley (CERN), Ms Liliana Florez (ILF)07/06/2023, 13:30
This talk will provide an update on the latest civil engineering design of the FCC feasibility study. It will cover a range of topics, including the latest sub-surface structures, the progress of the construction schedule and cost study, and the geotechnical site investigations that will be carried out to assess the feasibility of the project.
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Jacqueline Keintzel (CERN)07/06/2023, 13:30
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Brett Parker (Brookhaven National Laboratory (US))07/06/2023, 13:30Oral presention (by invitation only)
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Katherine Arundell (Springer Nature)07/06/2023, 13:30Oral presention (by invitation only)
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Franck Peauger (CERN)07/06/2023, 13:30
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Aurelien Martens (Université Paris-Saclay (FR))07/06/2023, 13:34
A status report of the Compton polarimeter will be provided along with relevant challenges.
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Dr Oleg Malyshev (UKRI/STFC Daresbury Laboratory)07/06/2023, 13:35
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Carl Jaermyr Eriksson (CERN)07/06/2023, 13:50MDI (Machine Detector Interface)Oral presention (by invitation only)
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John Hammersley07/06/2023, 13:50Oral presention (by invitation only)
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Anne-Marie Valente-Feliciano07/06/2023, 13:53
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Yi Wu (EPFL - Ecole Polytechnique Federale Lausanne (CH))07/06/2023, 13:55
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Damian Dockery (FNAL), Andrew Federowicz (FNAL), Brian Rubik (FNAL)07/06/2023, 14:00
This presentation will present the outcomes of the collaboration between CERN and Fermilab (US Department of Energy) for the design and preparation of 3D models for one experiment (Point A) and one technical (Point B) of the FCC surface sites. The presentation will discuss the various inputs considered to demonstrate the feasibility and adaptability of the two surface sites in accordance with...
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Dr Arnaud Pascal Foussat (CERN)07/06/2023, 14:10MDI (Machine Detector Interface)Oral presention (by invitation only)
The new Future Circular Colliders (FCC), including high-luminosity e⁺e⁻ collider, exploits the crab waist interaction scheme at interaction region (IR) with a beam crossing angle of 30 mrad. The small values of the beta functions at the interaction point requires strong and thin crab sextupole pair for chromaticity correction. Their location between 250 m and 700 m from the interaction region,...
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07/06/2023, 14:10
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Akira Miyazaki (Uppsala University (SE))07/06/2023, 14:11
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Bastian Haerer, Edmund Blomley07/06/2023, 14:16Oral presention (by invitation only)
The Future Circular electron-positron collider, FCC-ee, will require precise measurement of its beam energy. The proposed method of resonant depolarization has been successfully used at the Karlsruhe Research Accelerator (KARA) at the Karlsruhe Institute of Technology (KIT) for a long time. With a high amount of available machine physics days, short polarization times and flexible beam...
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Sam Posen07/06/2023, 14:29
As FCC-ee reconfigures to reach higher and higher energies, many 800 MHz SRF cavity cryomodules are planned for installation in the tunnel. In this presentation, we discuss some R&D activities at Fermilab related to these cryomodules. We present relevant R&D towards achieving high Q0 in cavities in this frequency range and at operating gradients relevant for the FCC-ee specification, including...
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Mr Leonard Watrelot (CNAM - Conservatoire National des Arts et Métiers (FR))07/06/2023, 14:30MDI (Machine Detector Interface)Oral presention (by invitation only)
The FCC-ee will implement a crab-waist configuration, implying a very dense Machine Detector Interface (MDI), having accelerator components to be placed inside the detector. For the moment, a very elegant but complex design raises challenges, especially regarding the conditions near the components requiring alignment. Alignment sensors will need to be installed and operate in cryogenic...
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Ms Lucy Rew (EGIS), Roddy Cunningham (CERN)07/06/2023, 14:30
This presentation will give an update on the subsurface site investigations planned for 2024 and 2025 in the areas of highest geological uncertainty on the proposed future alignment of the FCC.
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Beginning briefly by presenting why having a robust 3D geological subsurface model is essential for civil engineering studies, it will go on to describe the level of detail and certainty in the... -
Alain Blondel (Universite de Geneve (CH))07/06/2023, 14:37Oral presention (by invitation only)
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Manfred Wendt (CERN)07/06/2023, 14:45MDI (Machine Detector Interface)Oral presention (by invitation only)
The FCC-ee beam position monitors (BPM) is a non-invasive beam diagnostics system which consists out of ~2000 BPM pickups in each of the two main rings, plus read-out electronics and infrastructure. While most BPM pickups are located in the arcs, rigidly fixed at the quadrupole magnets, 3+3 BPMs are located in each of the interaction regions (IR) with particular challenging real-estate,...
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Prof. Anna Scaife (University of Manchester)07/06/2023, 15:30Oral presention (by invitation only)
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Dr Dan Symes (STFC)07/06/2023, 16:00Oral presention (by invitation only)
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Dr Marco Ghibaudi (Riverlane)07/06/2023, 16:30Oral presention (by invitation only)
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Alice Lucie Vanel (CERN)08/06/2023, 08:30
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Ivan Koop (Budker Institute of Nuclear Physics (RU))08/06/2023, 08:30Oral presention (by invitation only)
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Simona Bettoni (Paul Scherrer Institut)08/06/2023, 08:30
Several linacs will bring the beam energy up to the nominal initial booster energy of 20 GeV. This will be achieved in several sections. The electron linac, from the exit of the gun section at 200 MeV up to 1.54 GeV will increase the bunch energy to 6 GeV, the common linac, where both electrons and positrons will travel, from 1.54 GeV up to 6 GeV, and the high energy linac to the final 20 GeV....
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Jean-Paul Burnet (CERN)08/06/2023, 08:30
The FCC-ee will be the largest accelerator ever built and it requires to be connected to the European grid for electricity supply. The power demand is a key parameter to define the grid connection. The identification of the main loads was performed and presented in 2022 as well as the energy consumption depending on the machine configurations. The studies for grid connection were launched...
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Shahnam Gorgi Zadeh (CERN)08/06/2023, 08:48
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Mr Jean-François Billerot (RTE France)08/06/2023, 08:48Oral presention (by invitation only)
On demand of the Technical and Infrastructure Working Group for Electricity & Energy Management Work Package, the French Transmission System Operator has led a preliminary study of the FCC connexion for electricity supply. The goal of the pre-study is:
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- to define how to connect the FCC to the French grid,
- to evaluate the impact on the electric system and on the other users connected to... -
Alexej Grudiev (CERN)08/06/2023, 08:50
Layout and design of positron and electron linacs up to 20 GeV will be presented and discussed including the baseline and alternative options.
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Guy Wilkinson (University of Oxford (GB))08/06/2023, 08:52
Many key measurements at FCC-ee, such as the determination of the W-boson and top-quark mass and widths, require excellent knowledge of the collision energy. Resonant depolarisation, which will be the principal tool for calibration of the beam energy at the Z pole, will be much more demanding in the W+W- regime, and impossible at higher energies. Related challenges exist for the measurement...
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Mr Sosoho-Abasi Udongwo (UROS)08/06/2023, 09:06
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Charline Marcel (CERN)08/06/2023, 09:06
Starting from the baseline presented during the FCC week of 2022 and from the studies for the grid connection, the study of the electrical distribution network has been updated and developed.
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The load forecast is being detailed per zone for the most relevant consumers, this allows now to have a better load mapping to assess the electrical needs and the required infrastructure per point and... -
Hannes Bartosik (CERN)08/06/2023, 09:10
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Zhandong Zhang (Université Paris-Saclay (FR))08/06/2023, 09:14Oral presention (by invitation only)
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Manuel Colmenero Moratalla (Valencia Polytechnic University (ES))08/06/2023, 09:24
With the advent of power electronics in recent years, DC networks have become an interesting solution for the distribution of electrical energy due to their advantages in terms of efficiency, controllability, volume reduction, and integration of energy storage. Considering the particularities of the FCC, DC networks could be used to supply power to specific machine parts.
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At a larger scale,... -
Joanna Sylwia Swieszek, Thomas Demaziere08/06/2023, 09:24
The study and optimisation of manufacturing processes for copper substrates of Nb-coated cavities is a subject of renewed interest, due to the challenging demands on SRF performance for the Future Circular Collider (FCC).
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This contribution will highlight related activities, currently being performed at CERN, namely on the R&D and optimization of welding processes, and on the production of... -
Wolfgang Bartmann (CERN)08/06/2023, 09:30
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Jacqueline Keintzel (CERN)08/06/2023, 09:36
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Carlota Pereira Carlos (Universite de Geneve (CH))08/06/2023, 09:42
CERN developed significant know-how in the design and fabrication of niobium-coated copper superconducting radiofrequency (SRF) cavities for accelerators, from LEP to the LHC and HIE-ISOLDE. While 400MHz Nb-coated Cu cavities are being considered for the leptonic machine variants of the FCC, further optimization is required to comply with the established performance targets.
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The work... -
Byamba Wicki (CERN)08/06/2023, 09:42
The focus of this presentation is to address the challenge of evaluating the most effective powering solutions for the FCC-ee and FCC-hh. This involves selecting the optimal circuit configurations for the different magnet types, determining the best location for the power converters, and choosing the energy storage systems. To achieve this, we must consider various factors, such as the capital...
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Massimo Giovannozzi (CERN)08/06/2023, 10:30
Since the publication of the CDR, much progress has been made on the layout of the FCC-hh ring. Driven by the recent result of the ring placement studies and updates of the FCC-ee layout, major changes have been implemented in the FCC-hh ring layout. In this talk, I review the main features of the new layout, and I also provide an outlook of future studies and activities.
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Felix Sefkow (Deutsches Elektronen-Synchrotron (DE)), Mogens Dam (University of Copenhagen (DK))08/06/2023, 10:30Oral presention (by invitation only)
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Roberto Rinaldesi (CERN)08/06/2023, 10:30
The presentation will provide the status of the design of the vehicles that will be used for the underground transport of personnel and material.
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A specific concept vehicle has been developed for the transport and installation of the material, in particular the collider and the booster components; the talk will cover the constraints to be respected, the vehicle characteristics, the most... -
Fabian Manke (CERN)08/06/2023, 10:30Oral presention (by invitation only)
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Gabriella Gaudio (INFN-Pavia)08/06/2023, 10:35
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Benedikt Oliver Müller08/06/2023, 10:45
After collecting all the requirements from the different users, a preliminary logistic study has been conducted with the purpose of simulating the material flow and the installation operations for the magnets of the collider ring and booster ring in the underground tunnel; the study analysed several scenarios based on different boundary conditions such as the number of shafts available for the...
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Franck Peauger (CERN), Marc Timmins (CERN)08/06/2023, 10:48
The Slotted Waveguide ELLiptical (SWELL) cavity is a novel concept of superconducting cavity proposed as an alternative option for the FCCee RF system. The presentation will give an update on the fabrication of the 1.3 GHz SWELL prototype used as a first step of the feasibility demonstration. The mechanical design, the precise machining results and the blank assembly tests of the cavity...
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Gustavo Perez Segurana (CERN)08/06/2023, 10:55
We present the latest developments in the optics design of the FCC-hh particle collider. The main change with respect to previous designs is the change of the arc cells from 12 to a 16-dipole FODO scheme which makes full use of the available aperture and increases the dipole filling factor. The updated design of insertions is also discussed, adapting the changes in the layout requirements from...
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Prof. Daniela Bortoletto (University of Oxford (GB))08/06/2023, 10:57
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Giacomo Lavezzari (CERN)08/06/2023, 11:00
The radiation protection study for the FCC-ee shall assure the FCC-ee design compatibility with radiation protection objectives and constraints and provides input to the radiological environmental impact study.
In this particular contribution it provides an evaluation of the relevant radiological parameters in the arc section of FCC-ee, covering its entire operational life, including the Z...
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Dr Torsten Koettig (CERN)08/06/2023, 11:06
The cooling concept of the SWELL prototype is based on a self-sustained convection loop (open thermosyphon) in He I saturated conditions. The estimated heat load for one quarter of the SWELL 1.3 GHz prototype is 17.5 W. The 30 mm-diameter cooling tube has a length of 131 mm, which corresponds to the length of the SWELL main copper body. In the vertical SRF test arrangement, a 10 mm x 8 mm...
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Dr Roderik Bruce (CERN)08/06/2023, 11:15
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Andre Henriques (CERN)08/06/2023, 11:15
Within the framework of the FCC feasibility study, additional safety studies were developed to provide a quantitative assessment on the main risks identified during the CDR.
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The safety systems initially proposed in the CDR were studied in detail and adjustments were made to the baseline proposals, namely with regards to the smoke and helium extraction, as well as for the size of the safe... -
Roger Forty (CERN)08/06/2023, 11:19Oral presention (by invitation only)
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Vittorio Parma (CERN)08/06/2023, 11:24
In the past year, infrastructure and integration studies have led to a new choice of the two straight sections dedicated to the FCC-ee SRF system. Point H is now entirely dedicated to the collider while Point L integrates the booster. This new configuration offers a more convenient arrangement of the cryomodules which are now all placed at ground level for the collider and at a higher level...
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Benjamin Weyer (CERN)08/06/2023, 11:30
Building the FCC tunnel, installing and aligning each component and experiment of the machine at the intended location will be a challenging task relying notably on the quality and accuracy of the geodetic infrastructure. A solid geodetic foundation for the planning, construction, alignment and operation of the FCC will be implemented to support the different levels of accuracy required, from...
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Wolfgang Bartmann (CERN)08/06/2023, 11:35
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Dr Maksym Titov (IRFU, CEA Saclay, Université Paris-Saclay (FR))08/06/2023, 11:41
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David Smekens (CERN)08/06/2023, 11:42
RF requirements for projects such as FCC impose to keep the manufacturing of SRF objects under extremely strict process control to prevent any performance degradation due to surface contamination.
In this regard, thin film on copper technology is particularly demanding.Current SRF facilities at CERN cannot meet these requirements, increasing the risk of defects and of high rejection...
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Federico Carra (CERN)08/06/2023, 13:30
This talk will give a summary of the studies performed during the first year of the FCC-ee arc half-cell mock-up project. Details of the design of the interfaces between the main systems, their supporting and placement principles, will be described. The talk will also review the task timeline and milestones. Finally, the current status of the configuration of the half-cell mock-up will be showed.
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Leon Van Riesen-Haupt (EPFL - Ecole Polytechnique Federale Lausanne (CH))08/06/2023, 13:30
With the increasing complexity of colliders, it is crucial to consider many physical phenomena in accelerator simulation studies, including complex effects such as radiation, beam-beam, and impedance. However, existing simulation tools are often outdated or focus on a single aspect. To address this challenge, the CHART collaboration is developing a software framework that integrates different...
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Jorgen D'Hondt (Vrije Universiteit Brussel (BE))08/06/2023, 13:30
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Brieuc Francois (CERN)08/06/2023, 13:30
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Davide Di Croce (EPFL - Ecole Polytechnique Federale Lausanne (CH))08/06/2023, 13:50
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Sam Rorison (CERN)08/06/2023, 13:50
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Peter Kicsiny (EPFL)08/06/2023, 13:55FCC-ee accelerator
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Armin Ilg (University of Zurich)08/06/2023, 13:55
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Walid KAABI08/06/2023, 14:00Oral presention (by invitation only)
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Alvaro Tolosa Delgado (CERN)08/06/2023, 14:10
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Mirko Siano (Università degli Studi di Milano)08/06/2023, 14:10
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Tiziana Von Witzleben (Rheinisch Westfaelische Tech. Hoch. (DE))08/06/2023, 14:15
The Future Circular Collider for electron-hadron collisions (FCC-eh) is a design study, that investigates colliding one of the hadron beams of the FCC with an intense, high energy electron beam.
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The e-p collisions for deep inelastic scattering physics (DIS) would take place in one of the FCC interaction regions, concurrently to the on-going p-p collisions in the other interaction points.... -
Guillaume Simon (Université Paris-Saclay (FR))08/06/2023, 14:15
The design of the electron-positron Future Circular Col-
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lider (FCC-ee) challenges the requirements on optics codes
(like MAD-X) in terms of accuracy, consistency, and per-
formance. This paper analyses MAD-X TWISS, TRACK
and EMIT modules by comparing their mutual consistency,
absolute accuracy and stability and will make improvement
proposals. -
Prof. Giovanni De Carne (Karlsruhe Institute of Technology (KIT))08/06/2023, 14:25
To efficiently and reliably enable the operation of future large-scale research facilities, it is indispensable to conduct multi-area and multi-disciplinary research, taking into account in the facility design not only scientific aspects, but also energy-related challenges. At the Karlsruhe Institute of Technology (KIT), the innovative research laboratory KITTEN has recently been developed,...
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Fatih Yaman (Izmir Institute of Technology (IYTE))08/06/2023, 14:30
We investigate the effects of the updated beam and machine parameters on the electron cloud instability for the FCC-ee arc dipole & drift regions by considering ‘ECLOUD’ and ‘Furman-Pivi’ secondary emission yield models and realistic photoemission yield values.
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Sang Hyun Ko (Seoul National University (KR))08/06/2023, 14:30
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08/06/2023, 14:30Oral presention (by invitation only)
The Future Circular Collider in electron-hadron mode [1] will make possible the study of DIS in the TeV regime providing electron-proton (nucleus) collisions with per nucleon instantaneous luminosities around 1034 (1033) cm−2s−1. Here we describe the main physics goals of this experiment and current detector design that realises the objective [1,2], and the key developments needed.
[1] LHeC...
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Lucie Baudin (CERN)08/06/2023, 14:45
In the frame of FCC-ee, where the radiation level and the large scale of the facility impose remote activities and cost optimization, the deployment of dynamic models of physical mechanical systems has great potential.
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Ability to provide real-time feedback on the system’s state and to perform predictive modelling can contribute -among others- to diagnostic optimization, reduction of number of... -
Maria Chamizo Llatas (Brookhaven National Laboratory (US))08/06/2023, 14:45Oral presention (by invitation only)
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Michaela Mlynarikova (CERN)08/06/2023, 14:45
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Ali Rajabi08/06/2023, 14:45
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Dr Pantaleo Raimondi (SLAC National Accelerator Laboratory (US))08/06/2023, 15:30
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Leonard Watrelot (CNAM - Conservatoire National des Arts et Métiers (FR))08/06/2023, 15:30
The FCC-ee will be installed in a 91 km long tunnel at around 200 m underground. The size of the project, the tunnel configuration and stability, the number of components to align and the alignment tolerances raise unprecedented challenges. From the manufacturing of the components to the relative alignment of these components during technical shutdowns, all the alignment steps are impacted. ...
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Didier Claude Contardo (Centre National de la Recherche Scientifique (FR))08/06/2023, 15:30
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John W. Heron (CERN)08/06/2023, 15:50
To reach integrated luminosity goals, the FCC-ee must be operational for minimum 80% of the scheduled 185 physics days each year. For comparison, the LHC achieved 77% in Run 2, 2016-2018. There are additional challenges in operation and maintenance of the FCC-ee due to its scale, complexity and ambitious technical objectives. Availability is therefore a significant risk to physics...
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Michael Hofer (CERN)08/06/2023, 16:00
An alternative lattice design for the FCC-ee collider ring has been proposed, which aims to provide large Dynamic Aperture and Momentum acceptance through the dedicated correction of higher order nonlinear terms excited by the chromaticity correction sextupoles.
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A large acceptance of the machine is required to provide a sufficient beam lifetime and good injection efficiency, which are both... -
Magnus Mager (CERN)08/06/2023, 16:00
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Dr Mario Di Castro (CERN)08/06/2023, 16:10
The fourth industrial revolution, the current trend of automation and data interconnection in industrial technologies, is becoming an essential tool to boost maintenance and availability for space applications, warehouse logistics, particle accelerators and for harsh environments in general. The main pillars of Industry 4.0 are Internet of Things (IoT), Wireless Sensors, Cloud Computing,...
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Cristobal Garcia (EPFL - Ecole Polytechnique Federale Lausanne (CH))08/06/2023, 16:20
In order to explore potential improvements to the current lattice design for FCC-ee, this work looks at the use of Combined Function Magnets (CFM) within the short straight sections of the arc cells. The use of CFMs introduces a change in the damping partition numbers. To avoid this it is necessary to maintain the values of the Synchrotron Radiation Integrals (I2 and I4), which are used to...
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Srini Rajagopalan (Brookhaven National Laboratory (US))08/06/2023, 16:30
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Kevin Daniel Joel Andre (CERN)08/06/2023, 16:40
An alternative lattice and beam optics have been developed for the FCC-ee which aim to provide large dynamic aperture and momentum acceptance via the correction of high order nonlinearities. In this presentation, the synchrotron radiation sources have been evaluated and a synchrotron radiation collimation scheme has been developed to protect the central beam pipe within the particle detector...
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Dr Mostafa Behtouei (INFN-LNF)08/06/2023, 17:00
The purpose of this paper is to calculate the longitudinal and transverse wakefields of the FCC collimators by using the electromagnetic codes ECHO3D and IW2D. We cross-checked our results using CST particle studio for long bunches, and found them to be in good agreement. The obtained results show that the collimators give one of the highest contributions to the overall FCC-ee wake potentials....
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Peter Lindquist Henriksen (CERN)08/06/2023, 17:01
We present recent developments and PSD data from the FCC-BESTEX experimental beamline at the KARA synchrotron at KIT on one FCC-hh beam screen, as well as future plans for measuring FCC-ee vacuum paper prototypes at the beamline. In addition, we demonstrate VacuumCOST, a new software tool that has been developed to enable more dynamic MolFlow simulations, including the pressure evolution in...
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Haoyu Shi08/06/2023, 17:02
The machine-detector interface (MDI) issues are one of the most complicate and challenging topics at the Circular Electron Positron Collider (CEPC). Comprehensive understandings of the MDI issues are decisive for achieving the optimal overall performance of the accelerator and detector. The CEPC machine will operate at different beam energies, from 45.5 GeV up to 120 GeV, with an instantons...
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Zhiyuan Li08/06/2023, 17:03
Simulation study is more and more essential in the design and study of a modern e+e- collider. Existing tools often simplify the lattice model in beam-beam or collective effects study. GPU provide the feasibility to implement element-by-element tracking with large amount of particles and limited computing resources. New e+e- collider need more self-consistent simulation to predict the beam...
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Alejo Nahuel Rossia (University of Manchester)08/06/2023, 17:04
Diboson production processes constitute an interesting probe of New Physics related to the Higgs boson and the EW sector. We study the 𝑊ℎ and 𝑍ℎ production processes, with leptonically decaying gauge bosons and both $h\to b\bar b$ and $h\to\gamma\gamma$ decay channels. We study these processes in the SMEFT framework and derive bounds on six dimension-6 operators. The possibility of using the...
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LINGFENG LI (Brown U.)08/06/2023, 17:05
Recent studies reveal the potential of the Tera-Z phase of the Future Circular Collider (FCC) for advancing our understanding of flavor physics. By operating at the Z-pole, the FCC enables the production of vast amounts of heavy flavor final states, making it an ideal platform to study Standard Model (SM) and Beyond Standard Model (BSM) physics. With a high integrated luminosity and large...
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王欲听 wangyuting (IHEP, CAS)08/06/2023, 17:06
The energy stored in Circular Electron and Positron Collider (CEPC) is in the order of MJ, which will make the beam pipe and other equipment broken once the beam loses control. Avoiding damage to accelerator is the first priority for machine protection. There are two kinds of protection schemes. One is active protection in which an action should be triggered when a failure signal is detected,...
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Peter Kicsiny (EPFL)08/06/2023, 17:07
The understanding of beam-beam effects, drivers of the FCC-ee parameter design in several aspects, require sophisticated and high-performance numerical simulations. The self-consistent study of the interplay of several nonlinear dynamical phenomena resulting from collisions in the machine is key to accurately assess its potential performance. Although current simulation frameworks can address...
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Alexei Kanareykin (Euclid Techlabs LLC)08/06/2023, 17:08
Euclid Techlabs LLC, in collaboration with JLab and Fermilab, has developed a new ceramic material with a finite DC electrical conductivity combined with a low RF loss tangent for use in high power coupler windows. The goal of the project was to develop windows with a loss tangent not exceeding that of alumina but with significantly increased DC conductivity for effective electrical discharge....
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Davide Di Croce (EPFL - Ecole Polytechnique Federale Lausanne (CH))08/06/2023, 17:09
The study of Dynamic Aperture (DA) plays a crucial role in understanding non-linear beam dynamics in circular accelerators. The DA defines the phase-space region where particles' motion remains bounded over a finite number of turns. It is affected by various elements such as the regular magnetic lattice, magnetic field imperfections, beam-beam effects, electron clouds, and other nonlinear...
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Francisco Gameiro Casalinho08/06/2023, 17:10
The study of the Higgs boson self-coupling at the $e^+e^-$ Future Circular Collider (FCC-ee) is extremely challenging due to the small di-Higgs production cross section. This is however a crucial property, which may have far-reaching implications in our understanding of particle physics. It will be studied at the HL-LHC but with an expected sensitivity limited by the foreseen data statistics....
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Dr Guangyi Tang (Institute of High Energy Physics, Chinese Academy of Science)08/06/2023, 17:11
My poster has three topics: the dump designs for the CPEC collider and linac, the synchrotron radiation shielding for magnet insulations, and the estimation for radioactivity production in the surrounding materials.
A design for the collider dump including a dilution system is updated. The material of the dump core is made of graphite while this core is surrounded with iron. The maximum...
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Micha Reißig08/06/2023, 17:12
The operation of the Future Circular Electron Positron Collider (FCC-ee) necessitates a robust longitudinal bunch diagnostics system for precise beam energy calibration and efficient top-up injection monitoring. As part of the FCC Innovation Study (FCCIS), an electro-optical (EO) bunch profile monitor is developed, based on the developments of the EO near-field monitor at the Karlsruhe...
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Paolo Craievich08/06/2023, 17:13
Regarding high current e+ sources, the almost universal usage of target-based production schemes combined with conventional capture technology has led to poor transmission efficiencies. This long-standing difficulty to handle the extreme e+ transverse emittance and energy spread has been a major impediment for future, high luminosity lepton collider designs. The PSI Positron Production...
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Dr Alexei Kanareykin (Euclid Techlabs LLC)08/06/2023, 17:14
Ferroelectric ceramic materials with low loss tangent at RF frequencies allow development of electrically controlled devices (tuners) with extremely fast switching times (τ<100 ns). This offers the possibility of a Ferroelectric fast reactive tuner (FE-FRT) ferroelectric cavity tuner, operating at room temperature, that can: (1) alter the coupling between the transmission line and the...
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Prof. Alessandro Gabrielli (Università e INFN, Bologna (IT)), Paolo Giacomelli (INFN Sezione di Bologna)08/06/2023, 17:15
Future ElectroWeaK factories require unprecedented highly granular jet calorimeters energy resolution. This goal appears to be achievable only with an imaging calorimeter it exploits particle flow algorithms or a fiber sampling Dual Readout (DR) calorimeter using scintillation and Cerenkov effects, the former produced by all ionising particles, the latter only by relativistic charged...
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Francesco Fransesini08/06/2023, 17:16
This poster presents a study on the structural optimization of the support structure for the interaction region (IR) of the Future Circular Collider (FCC). The aim is to optimize the structure to reduce the mass, maintaining the stifness needed. Finite element analysis (FEA) is used to develop a detailed numerical model considering complex geometries, material properties, and loading...
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Roxana Soos (Université Paris-Saclay (FR))08/06/2023, 17:17
The circulant matrix model was succefuly used to study mode coupling instabilities in the presence of electromagnetic wakefields, space-charge, beam-beam interactions and active feedbacks. The following work shows the implementation of beam-beam interactions with flat beams in the code BimBim in order to address issues encountered in electron positron collider such the FCC-ee or SuperKEKB. The...
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Andrea Ciarma (INFN e Laboratori Nazionali di Frascati (IT))08/06/2023, 17:18
We present preliminary results for an alternative coupling compensation scheme for the FCC-ee IR, based on the novel HFD lattice recently proposed by P. Raimondi, but that in principle can be implemented also in the baseline IR design. The study shows a very good correction of the IR coupling induced by the detector solenoid using skew quads, resulting in an increase of the vertical emittance...
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Andrea Ciarma (INFN e Laboratori Nazionali di Frascati (IT))08/06/2023, 17:19
Beamstrahlung is a dominant effect in the beam dynamics of the high luminosity next-generation lepton collider FCC-ee. We characterize the beamstrahlung radiation for the beam parameters at the four operating energies, and present the effect of this radiation in the Machine-Detector-Interface region. We discuss the conceptual need for a photon dump due to the high power produced, which is in...
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Mr Sam Rorison (CERN)08/06/2023, 17:20
The Vacuum Group at CERN are undertaking various studies for FCC-ee R&D. One avenue of work is focused on the vacuum chamber (beam screen) and its associated components. The designs for the interconnections between the beam screens have been completed and are now undergoing intensive impedance simulation for beam stability checks. The enormous scale of FCC-ee poses a significant challenge in...
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Zhandong Zhang (Université Paris-Saclay (FR))08/06/2023, 17:21
One of the most fundamental measurements since the Higgs boson discovery, is its Yukawa couplings. Such a measurement is only feasible, if the centre-of-mass (CM) energy spread of the e+e- collisions can be reduced from ~50 MeV to a level comparable to the Higgs boson’s natural width of ~4 MeV. To reach such desired collision energy spread and improve the CM energy resolution in colliding-beam...
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Mrs Vasiliki Batsari (CERN), Michael Koratzinos (PSI/CERN)08/06/2023, 17:22
The FCC-ee HTS4 (High-Temperature-Superconducting Short Straight Section) project, a collaboration between CERN and PSI, aims at the replacement of normal conducting short straight sectors of the FCC-ee main storage ring with high-temperature-superconducting (HTS) ones. The study focuses on the creation of a 1-meter-long (full-size) prototype module, which consists of a nested quadrupole -...
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Ms Audrey Piccini (Junior Fellow), Federico Carra (CERN), Lucie Baudin (CERN)08/06/2023, 17:23
A dedicated study is being undertaken at CERN, together with the FCC Feasibility Study collaborators, to propose a robust configuration for the FCC-ee arc half-cell considering all integration aspects of the elements. This study includes engineering analyses performed to design the supporting system of the booster and of the collider. The proposed layout must meet requirements in terms of...
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Guillaume Simon (Université Paris-Saclay (FR))08/06/2023, 17:24
The design of the electron-positron Future Circular Col-
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lider (FCC-ee) challenges the requirements on optics codes
(like MAD-X) in terms of accuracy, consistency, and per-
formance. This paper analyses MAD-X TWISS, TRACK
and EMIT modules by comparing their mutual consistency,
absolute accuracy and stability and will make improvement
proposals. -
Petr Martinek (FCC)08/06/2023, 17:25
This paper summarizes the first iteration of the FCC-ee kicker magnet design parameters. There will be 5 different kicker and septum systems in the FCC-ee complex. This work mainly focuses on the kicker magnet design for the beam dump system. A MATLAB script was created for automatized iteration on the design and optimization of the kicker magnet. The input parameters of this script are the...
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Alex Keyken (Royal Holloway University of London), Darren Zeming Chan (University of Toronto (CA)), Emily Rose Howling (Univ. of Oxford University College (GB)), Mr John Patrick Salvesen (University of Oxford, CERN)08/06/2023, 17:26
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Mr John Patrick Salvesen (University of Oxford, CERN)08/06/2023, 17:27Poster (one author must be in person)
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Timothy Paul Watson (CERN)09/06/2023, 08:30Oral presention (by invitation only)
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Klaus Hanke (CERN)09/06/2023, 08:45Oral presention (by invitation only)
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Frank Zimmermann (CERN)09/06/2023, 09:00Oral presention (by invitation only)
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09/06/2023, 09:25Oral presention (by invitation only)
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Paolo Craievich09/06/2023, 09:30Oral presention (by invitation only)
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Vladimir Shiltsev09/06/2023, 09:45Oral presention (by invitation only)
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Yannis Papaphilippou (CERN)09/06/2023, 10:00
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Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))09/06/2023, 10:40Oral presention (by invitation only)
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Jacqueline Keintzel (CERN)09/06/2023, 10:55Oral presention (by invitation only)
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Guy Wilkinson (University of Oxford (GB))09/06/2023, 11:10Oral presention (by invitation only)
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Michael Benedikt (CERN)09/06/2023, 11:40Oral presention (by invitation only)
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Peter Kicsiny (EPFL)
The understanding of beam-beam effects, drivers of the FCC-ee parameter design in several aspects, require sophisticated and high-performance numerical simulations. The self-consistent study of the interplay of several nonlinear dynamical phenomena resulting from collisions in the machine is key to accurately assess its potential performance. Although current simulation frameworks can address...
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