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Prof. Otmar D. Wiestler (German Helmholtz Gemeinschaft)29/05/2017, 08:30
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Rolf Heuer (Deutsches Elektronen-Synchrotron (DE))29/05/2017, 08:45
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Fabiola Gianotti (CERN)29/05/2017, 08:50
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Matthew Philip Mccullough (CERN)29/05/2017, 09:00
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Michael Benedikt (CERN)29/05/2017, 10:00
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Daniel Schulte (CERN)29/05/2017, 11:00
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Katsunobu Oide (High Energy Accelerator Research Organization (JP))29/05/2017, 11:30
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Frank Zimmermann (CERN)29/05/2017, 12:00
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Volker Mertens (CERN)29/05/2017, 14:00
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Jose Miguel Jimenez (CERN)29/05/2017, 14:30
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Davide Tommasini (CERN)29/05/2017, 15:00
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Olivier Brunner (CERN)29/05/2017, 15:15
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Werner Riegler (CERN)29/05/2017, 16:00
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Roberto Tenchini (INFN Sezione di Pisa, Universita' e Scuola Normale Superiore, P)29/05/2017, 16:35
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Max Klein (University of Liverpool (GB))29/05/2017, 17:10
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Joseph David Lykken (Fermi National Accelerator Lab. (US))29/05/2017, 18:00
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Fabiola Gianotti (CERN), Sijbrand De Jong (Radboud University Nijmegen (NL))29/05/2017, 18:30
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Frederick Bordry (CERN)29/05/2017, 19:00
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Patrick Janot (CERN)30/05/2017, 08:30
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Daniel Schulte (CERN)30/05/2017, 08:30
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Jiyuan Zhai (IHEP)30/05/2017, 08:30
CEPC is a 100 km double-ring circular electron positron collider operating at 90-240 GeV center-of-mass energy of Z-pole, WW pair production threshold and Higgs resonance. CEPC and its successor SPPC, a 100 TeV center-of-mass super proton-proton collider, will ensure the elementary particle physics a vibrant field for decades to come. To reduce the overall cost, partial double ring scheme was...
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Amalia Ballarino (CERN)30/05/2017, 08:30
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Klaus Schlenga (Bruker EST)30/05/2017, 08:40
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Dr Antoine Chance (CEA Irfu)30/05/2017, 08:45
The FCC-hh (Future Hadron-Hadron Circular Collider) is one of the three options considered for the next generation accelerator in high-energy physics as recommended by the European Strategy Group. The layout of FCC-hh has been optimized to a more compact design following recommendations from civil engineering aspects. The updates on the first order and second order optics of the ring will be...
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Paolo Azzurri (INFN Sezione di Pisa, Universita' e Scuola Normale Superiore, P)30/05/2017, 08:50
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Sergey Belomestnykh (Fermilab)30/05/2017, 08:50
Recently, the U.S. HEP community has developed a 10-year research roadmap for the accelerator RF technology. In this contribution, I present a portion of the roadmap dealing with developing superconducting RF technology for future Intensity Frontier and Energy Frontier HEP accelerators.
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Toru Ogitsu30/05/2017, 09:00
A high Jc Nb3Sn conductor development program has been launched jointly by CERN, KEK, Tohoku and Tokai Universities. The scope of the program is to develop, produce in representative lengths and characterize Nb3Sn wire with enhanced characteristics. The final goal is to achieve, in representative unit lengths of material, the following development targets on the basis of magnets performance,...
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Shahnam Gorgi Zadeh ( Universitaet Rostock (DE))30/05/2017, 09:10
In the design study of the FCC-ee an RF cavity system is required to provide the necessary accelerating voltage for the four operating modes of the FCC-ee, i.e. Z, W, H and tt-bar. Based on the preliminary studies, a single design that can serve all four setups is not feasible. The H and tt-bar systems are two demanding cases that are characterized by high accelerating voltage of up to 10 GV....
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Andrei Seryi (University of Oxford (GB))30/05/2017, 09:10
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Fulvio Piccinini (Universita e INFN, Pavia (IT))30/05/2017, 09:10
The high precision program of future e^+ e^- colliders, such as CEPC, FCC-ee and ILC, will be very challenging for the needed accuracy in theoretical predictions. The present status and future prospects on the Z pole observables and the thresholds for $WW$, $ZH$ and $t \bar t$ production are reviewed.
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Dr Jiman Kim (Kiswire Advanced Technology(KAT) )30/05/2017, 09:20
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Alain Blondel (Universite de Geneve (CH))30/05/2017, 09:30
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Rama Calaga (CERN)30/05/2017, 09:30
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Florian Burkart (CERN)30/05/2017, 09:35
Safely extracting and absorbing the 50 TeV proton beams of the FCC-hh collider will be a major challenge. In the new baseline concept one straight section of 2.8 km length is dedicated to the beam dumping system. The beam dumping system will fast-extract the beam and transport it to an external absorber. The high stored beam energy of about 8.5 GJ per beam means that machine protection...
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Victor Pantsyrny (Bochvqr Institute)30/05/2017, 09:40
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Andy Sven Langner (CERN)30/05/2017, 10:30
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Markus Klute (Massachusetts Inst. of Technology (US))30/05/2017, 10:30
After the Higgs boson discovery, the precision measurements and searches for new phenomena in the Higgs sector are among the most important goals in particle physics. Experiments at the Future Circular Colliders (FCC) are ideal to study these questions. Electron-positron collisions up to an energy of 350 GeV provide the ultimate precision with studies of Higgs boson couplings, mass, total...
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Bernardo Bordini (CERN)30/05/2017, 10:30
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Samuel Elliott Posen (Department of Physics - University of Toronto)30/05/2017, 10:30
Plans for FCC call for 11 GV of RF voltage for ee-tt, corresponding to ~2600 SRF cells. In this contribution, we examine recent developments in state-of-the-art SRF technology that can reduce the cost burden of this significant infrastructure. Topics of discussion include new nitrogen infusion processing for bulk niobium, progress in Nb3Sn coatings, and preparation techniques that promote flux...
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Anne-Marie Valente-Feliciano (Jefferson Lab)30/05/2017, 10:48
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Patrizia Azzi (INFN Padova (IT))30/05/2017, 10:50
In the framework of the FCC project, the FCC-ee collider program contains a specific run at the center of mass energy around 350 GeV with an integrated luminosity corresponding to the production of about 1 Million top quark pairs. The ultimate goal is to obtain the most precise measurement of the top mass with a threshold scan from 340 to 350 GeV. However, the top physics program at the FCC-ee...
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Dr Angeles Faus-Golfe (Univ. of Valencia and CSIC (ES))30/05/2017, 10:52
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Lance Cooley (Fermilab)30/05/2017, 11:00
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Katsiaryna Ilyina (CERN)30/05/2017, 11:06
The high critical temperature (~18K for Nb3Sn) and very low Bardeen-Cooper-Schrieffer (BCS) surface resistance of A15 intermetallics makes them a promising category of materials alternative to niobium to be used in Superconducting Radio Frequency (SRF) cavities. Despite these benefits, the excessive brittleness of this group of materials means that they cannot be used as the bulk material in...
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Stephane Monteil (Univ. Blaise Pascal Clermont-Fe. II (FR))30/05/2017, 11:10
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Elena Shaposhnikova (CERN)30/05/2017, 11:14
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Peter Lee (Florida State University)30/05/2017, 11:20
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Leonel Marques Antunes Ferreira (CERN)30/05/2017, 11:24
Previous experiments have demonstrated a better performance obtained for thin film Nb/Cu RF cavities on electropolished copper substrates compared to chemically polished ones. In the context of the Future Circular Collider (FCC) study, CERN is designing a new copper electropolishing facility capable of processing elliptical cavities from 1.3 GHz to 400 MHz (single cell); this facility is to...
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David d'Enterria (CERN)30/05/2017, 11:30
Presentation of the physics case for QCD and gamma-gamma measurements at FCC-ee.
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Michaela Schaumann (CERN)30/05/2017, 11:36
The hadron collider studied in the future circular collider (FCC) project could operate with protons and lead nuclei in similar modes to the LHC. Considering the current baseline assumptions for the proton-proton program, this paper updates and extends previous studies investigating the potential performance in lead-lead and proton-lead collisions. Beam parameter and luminosity evolution, as...
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Mike Sumption (The Ohio State University)30/05/2017, 11:40
In this work we pursue the development of high-Jc multifilamentary (Nb,Ti)3Sn wire containing ZrO2 APCs. Previously, 61-filament powder-in-tube (PIT) APC Nb3Sn binary conductors were demonstrated. These conductors showed very high pinning strength and high layer Jcs at 12 and 15 T (a layer Jc double the best RRP wires). However, the wires had low A15 layer conversion fractions, because the...
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Reza Valizadeh (STFC)30/05/2017, 11:42
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Barbara Dalena (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))30/05/2017, 13:30
In the hadron machine option, proposed in the context of the Future Circular Colliders (FCC) study, the first evaluation of dipole field quality, based on the Nb3Sn technology has shown a Dynamic Aperture at injection above the LHC target value. In this paper the effect of field imperfections on the dynamic aperture, using the updated lattice design, is presented. Tolerances on the main...
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Alexander Zlobin (Fermilab)30/05/2017, 13:30
Fermilab is collaborating with industry and other labs and universities on superconducting (SC) wire and cable R&D, with the goal of improving key properties and providing conductor specifications and data for design and construction of SC accelerator magnets for a future very high energy pp collider. SC wire R&D focused first on optimizing the geometrical and chemical layout of Restacked-Rod...
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Nikolai Schwerg (CERN)30/05/2017, 13:30
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Maurizio Pierini (CERN)30/05/2017, 13:30
We discuss the sensitivity of the FCCee collider to physics beyond the satndard model. Taking a few new-physics scenarios as benchmark examples, we show the complementarity between the FCCee and the program at hadron colliders and the implications for the design of the FCCee detector.
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Andy Butterworth (CERN)30/05/2017, 13:50
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Mogens Dam (University of Copenhagen (DK))30/05/2017, 13:50
To match the high statistical precision of the FCC-ee event samples, general purpose detectors that can measure and identify with high precision all the fundamental fermions and bosons of the standard model, and thereby access all known physics processes, are called for.
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The talk will first briefy summarize the main requirements for a FCC-ee detector: (i) precise momentum measurement of... -
Marina Putti (University of Genova)30/05/2017, 13:50
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Oliver Boine-Frankenheim (TU Darmstadt)30/05/2017, 13:55
This presentation summarizes the recent activities on beam instabilities, impedances and electron clouds within the EuroCirCol Workpackage 2.4.
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Ivan Karpov (CERN)30/05/2017, 14:10
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Emilia Leogrande (CERN)30/05/2017, 14:10
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Tatiana Pieloni (EPF Lausanne)30/05/2017, 14:15
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David Larbalestier (National High Magnetic Field Laboratory)30/05/2017, 14:20
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Georgios Gerasimos Voutsinas (CERN)30/05/2017, 14:30
A preliminary study on machine induced backgrounds has been performed for the proposed FCC-ee interaction region (IR) and proto-detector. The effect of synchrotron radiation and of luminosity-induced backgrounds like γγ to hadrons and pair production have been studied. The impact of background particles on the detector occupancy has been studied in full simulation. The challenges on...
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Wolfgang Hofle (CERN)30/05/2017, 14:30
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Laurette Ponce (CERN)30/05/2017, 14:35
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Jonathan R. Ellis (University of London (GB))30/05/2017, 15:30
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Bernardo Bordini (CERN)30/05/2017, 15:30
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Wolfgang Bartmann (CERN)30/05/2017, 15:30
The transfer and injection of the high brightness 3.3 TeV proton beams from the High Energy Booster (HEB) to the FCC presents several interesting challenges. In the new baseline concept one straight section of 1.4 km length is dedicated to house one injection system and a side-experiment. Due to the limited amount of space, a special injection and collision optics were designed and optimized...
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Sarah Aull (CERN)30/05/2017, 15:30
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Carmine Senatore30/05/2017, 15:50
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Christophe Grojean (DESY (Hamburg) and Humboldt University (Berlin))30/05/2017, 15:50
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Robert Alan Rimmer30/05/2017, 15:50
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Florian Burkart (CERN)30/05/2017, 15:55
A new SPS with significantly higher extraction energy than the present 450 GeV is of interest for several CERN projects presently under study. Firstly, for the Future Circular Collider for hadrons (FCC-hh) the tunnels of SPS, LHC and the 100 km collider will be available to house a High Energy Booster (HEB). Replacing the SPS by a superconducting single aperture, low complexity accelerator...
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emanuela barzi (Fermilab)30/05/2017, 16:10
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Eric Montesinos (CERN)30/05/2017, 16:10
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David d'Enterria (CERN)30/05/2017, 16:10
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Michael Hofer (Vienna University of Technology (AT))30/05/2017, 16:15
The layout of the FCC-hh has recently been modified due to civil engineering requirements. Whereas in the previous baseline layout the low luminosity experiments were situated in dedicated straight sections, the new version combines injection and experiment in the same insertion keeping the straight section length constant. We present first optics designs for these insertions together with the...
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Oliver Fischer (Unibas)30/05/2017, 16:30
Right-handed or, equivalently, sterile neutrinos are among the most attractive extensions of the SM to generate the light neutrino masses observed in neutrino oscillation experiments.
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When the right-handed neutrinos are subject to a ""lepton number""-like symmetry they can have masses around the electroweak scale and potentially large Yukawa couplings, which makes them testable at the planned... -
Igor Syratchev (CERN)30/05/2017, 16:30
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Dr Antoine Chance (CEA Irfu)30/05/2017, 16:35
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Fani Valchkova-Georgieva (Bulgarian Academy of Sciences (BG)), Yvon Muttoni (CERN)30/05/2017, 17:00
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Leon Van Riesen-Haupt30/05/2017, 17:00
One of the main challenges when designing final focus systems of particle accelerators is maximising the beam stay clear in the strong quadrupole magnets of the inner triplet. Moreover it is desirable to keep the quadrupoles in the inner triplet as short as possible for space and costs reasons but also to reduce chromaticity and simplify corrections schemes. An algorithm that explores the...
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Jose L. Abelleira (JAI-Oxford)30/05/2017, 17:00
We present the concept for a new optics for the main Experimental Interaction Region (EIR) of the FCC-hh. This optics is fully symmetric for either side of the IP and for either plane. The luminosity evolution and a schematic of the first quadrupole is shown.
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Jussi-Pekka Penttinen (Ramentor Oy)30/05/2017, 17:00
Particle accelerators exhibit complex behaviour emerging from the interaction of diverse machine systems, services, beam and environmental conditions. Since 2015 we explore the fitness of probabilistic reliability engineering to particle accelerators. The investigation relies on the LHC as use-case. Results indicate that the approach, already well established in manufacturing, automotive,...
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Claudio Kotnig (Graz University of Technology (AT))30/05/2017, 17:00
The cooling of the superconducting magnet cold masses with superfluid helium (HeII) is a well-established concept successfully in operation since years in the LHC. Consequently, its application for the cooling of FCC magnets is an obvious option. The 12-kW heat loads distributed over 10-km long sectors not only require an adaption of the magnet bayonet heat exchangers, but also present new...
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Junjie Zhao (Lanzhou University (CN) and TUT (FI))30/05/2017, 17:00
The copper current density plays important role in the quench protection of superconducting magnets. In non-graded magnets the worst case hot spot is typically at the location of the highest magnetic field and with active quench protection the temperature of the rest of the magnet is kept relatively isothermal. Graded superconducting magnets pose new challenges to the quench protection because...
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Nerea Ibarrola Subiza (CERN)30/05/2017, 17:00
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Laura Bandiera (Universita di Ferrara & INFN (IT))30/05/2017, 17:00
As a charged particle beam is aligned with one of the main axes of a slightly bent crystal, most of the particles follows the crystal curvature due to multiple scattering with bent crystal atomic strings, the so called stochastic deflection. Indeed, in the case of positively charged particles, a portion of the beam may escape from the axial confinement to planar channeling. We investigated...
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Armen Apyan30/05/2017, 17:00
The conceptual design of an abort system for the future electron positron circular collider is presented. A dedicated abort system has been studied based on MAD-X simulations. The proposed abort system consists of abort kickers, septum magnets and a dilution kicker system. The abort system must safely remove the beam from the accelerator ring and transport it to a dedicated beam dump. The...
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Daria Astapovych (TU Darmstadt)30/05/2017, 17:00
Previous studies already showed that the FCC-hh beam intensities are limited by the resistive wall and the collimator impedances. In addition, electron clouds also contribute to the total impedance and could be the cause of instabilities. Numerical model of beam instabilities taking into account the impedance model is being developed. This should also be extended and include electron...
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Vitaly Okorokov (National Research Nuclear University MEPhI (RU))30/05/2017, 17:00
A multiparticle Bose–Einstein symmetrization can enhance the emission of pions and as consequence can lead to the pion condensation in strong interactions at high energies. Onset of the Bose–Einstein condensation is driven by the critical space density of charged secondary bosons which are mostly pions. The energy dependence of space pion density at freeze-out and its critical value,...
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Eleonora Belli (Sapienza Universita e INFN, Roma I (IT))30/05/2017, 17:00
FCC-ee is an e+e- circular collider designed to accelerate and collide electron and positron beams. One of the most critical aspects to be addressed in the design phase is the intensity limitation due to collective effects which can produce instabilities, limit the accelerator operation and reduce its performance. The studies presented in this contribution are focused on the electromagnetic...
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Emmanuele Ravaioli (LBNL)30/05/2017, 17:00
"High field accelerator dipoles are the enabling technology for future colliders surpassing the energy reach of LHC.
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The effectiveness of adopting a common-coil layout, featuring flat racetrack coils shared between the two magnetic apertures, is investigated here. The common coil layout offers potential advantages such as use of flat cables and larger bending radius at the coil ends. However,... -
Alexander Zlobin (Fermilab)30/05/2017, 17:00
Cost-effective superconducting dipole magnets with operating fields up to 16 T are being considered for the LHC energy upgrade (HE-LHC) or a Future Circular Collider (FCC). Design studies of 16 T Nb3Sn dipole magnets based on 2-, 3- and 4-layer 50 mm aperture cos-theta coils with and without stress management elements are being conducted at Fermilab. The goal of these studies is to explore the...
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Shinya Kawashima (Kobelco)30/05/2017, 17:00
Kobe Steel Ltd. have been doing research of Nb3Sn wire since 1980s’, and Japan Superconductor Technology, Inc. (JASTEC), one of her affilieted company manufacturing superconducting wire and magunet, has high production capacity of Bronz(Cu-Sn alloy) routed Nb3Sn wire. JASTEC was one of the main supplier of Nb3Sn strand for ITER (International Thermal Experimental Reactor) project, and supplied...
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Maria Mylona (CERN)30/05/2017, 17:00
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Mr Kristof Brunner (Hungarian Academy of Sciences (HU))30/05/2017, 17:00
In order to decrease the beam impedance the beam screen of the FCC ring is planned to receive a high-temperature superconductor coating. However the persistent currents induced in the coating would distort the ring's magnetic field. Rather than trying to suppress this effect we examine the possibility to use a tailored thickness profile of the coating such that these currents produce a field...
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Jose L. Abelleira (JAI-Oxford)30/05/2017, 17:00
An optimized design of a final-focus system for the main EIR of FCC-hh is presented here. The new design is more compact and enables unequal in both planes, whose choice is justified here. This is followed by energy deposition studies, where the total dose in the magnets as a consequence of the collision debris is evaluated.
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Marco Angelucci (LNF-INFN (IT))30/05/2017, 17:00
In FCC-hh one of the most challenging issue will be the control of all possible instabilities that could occur. In order to do so,most simulation programs need realistic inputs measured in experimental conditions as close as possible to the ones that will occur in the machine. Most of the accelerators walls will see the beam while being at low temperatures and their relevant properties will...
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Andre Henriques (CERN)30/05/2017, 17:00
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Saverio La Mendola (CERN)30/05/2017, 17:00
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Yukai Chen (IHEP, CAS, China)30/05/2017, 17:00
For precision measurement of Higgs bason and searching for evidences of new physics beyond the Standard Model, China proposed a strategy of CEPC-SPPC, which plans to build a pp collider ( SPPC ) after the phase of ee Higgs factory ( CEPC ). In November 2016, CEPC-SPPC Steering Committee decided to adopt the baseline design of 100 km tunnel. This paper will present the progress of lattice...
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Carolina Abajo Clemente (CERN)30/05/2017, 17:00
In the framework of Future Circular Collider study, copper coated with niobium cavities must be fabricated to operate at a frequency of 400MHz. The two half-cells, to make one cavity, are traditionally manufactured by spinning through multiple forming steps, comprising intermediates heat treatments to achieve the required shape. Finally, the two half-cells are welded at the equator by...
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Jani Paavo Olavi Komppula (CERN)30/05/2017, 17:00
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Patrick Krkotic (TU Darmstadt)30/05/2017, 17:00
The baseline design of the FCC-hh beam screen is based on a 1 mm thick octagonal shaped stainless steel tube coated with a 300µm layer of copper. In the foreseen operating temperature of 40K to 60K the intended coating provides an impedance already close to the acceptable limit for a stable beam. In order to reduce the coupling impedance, we investigate High-Temperature Superconductor (HTS)...
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Dr Gergely Gabor Barnafoldi (Wigner RCP Hungarian Academy of Sciences (HU)), Peter Levai (Hungarian Academy of Sciences (HU))30/05/2017, 17:00
The development os a new-generation particle Monte Carlo generator for simulating high-energy heavy-ion collisions, HIJING++ is under development. The completely rewritten version of the FORTRAN-based HIJING2.1 relies on the latest version of PYTHIA8 and contains all the nuclear effects has been included in the HIJING2.1. The code is written in C++ and due to its modualarity, supports parallel...
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Francis Perez (ALBA Synchrotron - CELLS)30/05/2017, 17:00
A collaboration project between Instituto de Ciencia de Materiales de Barcelona-CSIC (“ICMAB”), Institut de Física d’Altes Energies (“IFAE”), ALBA Synchrotron Light source (“ALBA) and CERN has been established in order to obtain physical results to evaluate the use of Coated Conductors (CC) tapes as elements for the beam screen for FCC-hh based on its expected low surface impedance and high...
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Hugo Ricardo Correia Rodrigues (CERN)30/05/2017, 17:00
The Future Circular Collider (FCC) under study at CERN will produce 50-TeV high-energy proton beams. The high-energy particle beams are bent by 16-T superconducting dipole magnets operating at 1.9 K and distributed over a circumference of 80 km. The circulating beams induce 5 MW of dynamic heat loads by several processes such as synchrotron radiation, resistive dissipation of beam image...
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ILDAR ABDYUKHANOV (VNIINM (Bochvar Institute))30/05/2017, 17:00
In spite of the maturity of Nb3Sn internal tin wires designing and production routes there are still significant R&D needed for attaining of the challenging set of requirements specific for high field dipole magnets. The development of layouts and processing of Nb3Sn internal tin strands with non copper critical current density exceeding 2450 A/mm2 altogether with reasonably low hysteresis...
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Claudio Fichera (CERN)30/05/2017, 17:00
In the framework of the FCC study, the Nb3Sn technology plays a crucial role for high-field superconducting magnets. The new generation Nb3Sn cable greatly contributes to bring the magnetic field produced by the superconducting dipole magnets to the 16 T level; nevertheless, its mechanical properties are unknown making it difficult to predict the mechanical behaviour of the magnet structure....
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Pieter Van Trappen (CERN)30/05/2017, 17:00
Reliability, availability and maintainability are parameters that determine if a large-scale accelerator system can be operated in a sustainable and cost effective manner. Beam transfer equipment such as kicker systems are critical components with potential significant impact on global performance of the entire machine complex. Identifying the root cause of a malfunction can be a challenging...
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Bernard Riemann (TU Dortmund University)30/05/2017, 17:00
The current FCC-hh beam screen proposal includes pumping holes of considerable area hidden behind a shield. Although each hole's contribution to the ring impedance is negligible, the effect of a large number of pumping holes in a very large ring (constructive interference) has to be considered.
On one hand, due to evanescent coupling and the shield, space-discretisizing eigenmode and...
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Stephan Pfeiffer (TU Vienna)30/05/2017, 17:00
For the design of FCC-hh superconducting magnets an increase of the high field critical currents in commercial Nb3Sn wires by about 50 % is required. Feasibility of reaching this target has already been demonstrated by fast neutron irradiation induced defects. In this study, the underlying mechanisms are investigated through combined microstructural and magnetic analysis for realization in an...
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Pieter Van Trappen (CERN)30/05/2017, 17:00
The proposed FCC Beam Dump architecture consists of a large number of kicker magnets to assure a fast and safe beam deflection. The High Voltage (HV) pulse generators will produce fast controlled capacitor discharges through HV power switches into lumped inductance magnets. As for the LHC Beam Dump System (LBDS), an erratic triggering (i.e. self-trigger) of one or more of the 300 generator...
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Dr Georgy Sharkov (SC NIITFA)30/05/2017, 17:00
A novel technique to build high efficiency, modular, scalable, high availability solid-state amplifiers has been developed. The system allows for easy adjustment of single SSPA RF power to the power profile of the accelerator. High availability due to the use of unique technology of RF switches together with ""hot swap"" feature allows almost infinite constant running of the machine.
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The total... -
Fridolin Holdener (shirokuma GmbH)30/05/2017, 17:00
Large cryogenic systems as projected for FCC need a large number of cryogenic and warm valves. Most of these valves are control or metering valves guided by a PLC generated signal. Furthermore also, actuated shut-off valves are needed. Today such valves are driven by pneumatic actuators with electro-pneumatic control. The supply pneumatic system and electric signal cabling increases with the...
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Ida Aichinger (Johannes Kepler University (AT))30/05/2017, 17:00
Ultra high vacuum in the beam pipe is a basic requirement for the Future Circular Colliders (FCC). The dimension of the FCC and the high energy of the particles will make this requirement challenging. Simulations that predict the vacuum quality due to material and beam induced effects will allow to evaluate different designs and to choose an optimal solution.
The mathematical model behind...
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Ilkay Turk Cakir (Istanbul Aydin University)30/05/2017, 17:00
In this work, we have investigated Higgs-gauge boson couplings via e-p->e-qh process at the Future Circular eh Collider (FCC-eh). The limits on the anomalous hVV couplings in this process are obtained by using MadGraph5 multi-purpose event generator at the parameters of the FCC-eh.
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Konstantinos Nikolopoulos (University of Birmingham (GB))30/05/2017, 17:00
Following the discovery of a Higgs boson with a mass of about 125 GeV, subsequent measurements have confirmed its central role in the spontaneous breaking of electroweak symmetry. Currently, a wide-reaching programme of measurements is being proposed both for the HL-LHC
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and future electron-positron colliders to clarify the properties of the observed Higgs boson. Nevertheless, its role in the... -
Ilkay Turk Cakir (Istanbul Aydin University)30/05/2017, 17:00
Possible extensions of the Higgs sector can be searched for a wide range of parameter space in the high energy proton-proton collisions. The searches of the heavy Higgs bosons have special challenges at present high energy colliders. One of the future international projects currently under consideration is the Future Circular Collider (FCC) which has the potential to search for a wide...
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Georgi Gorine (Ecole Polytechnique Federale de Lausanne (CH))30/05/2017, 17:00
The Future Circular Collider (FCC) is being designed to reach h-h collisions at an unprecedented energy level of 100 TeV, about 8 times higher than in today`s Large Hadron Collider (LHC). Because of the increased energy and luminosity during FCC operation, radiation levels will likely exceed several tens of MGy (with >10e17 particles/cm2) inside the FCC experiments, and tens of KGy (with...
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Prof. Toms Torims (Riga Technical University (LV))30/05/2017, 17:00
Following the FCC study and its recent developments, it is evident that due to the nature, size, scale and complexity of the environment, the deployment of conventional repair methods and technologies will be insufficient in the FCC. Human intervention will be limited or even counterproductive because of the safety issues, time constraints and related costs. At the same time, it appears that...
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Sehban Kartal (University of Istanbul Department of Physics)30/05/2017, 17:00
Resonant production of l ̃ and ν ̃ at the FCC has been considered. For example, scalar neutrino may be investigated trough subprocess (dd)→ ν ̃→ l+ l'- These processes have great potantial for determination of RPV couplings.
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Magdalena Kordiaczyńska30/05/2017, 17:00
Discovery of the Higgs particle at the LHC confirmed the mechanism of mass generation predicted by the Standard Model. However, the Standard Model leaves some problems unsolved and many attemps to construct more sophisticated theory are undertaken. This poster will concentrate on non-standard models with triplet extention of the scalar sector of the electroweak theory like Higgs Triplet Model....
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Jinchi Cai30/05/2017, 17:00
In the application on the contemporary large particle colliders, increasing the efficiency of Klystron indicates substantial decrease of the operating cost, especially in a long run. There are lots of methods and concepts to increase the Klystron effeciency, which consistently engage to collect the peripheral electrons in the bunching process to achieve a very deep modulation at the entrance...
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Agnieszka Chmielinska (AGH University of Science and Technology (PL))30/05/2017, 17:00
A 100 TeV centre-of-mass energy frontier proton collider, in a new tunnel of 80–100 km circumference, is a central part of CERN’s Future Circular Colliders (FCC) design study. The FCC will require extremely reliable kicker systems to ensure safe injection of beam. Most existing kicker systems at CERN rely on technologies which include thyratron switches and pulse-forming networks/lines...
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Marco Prioli (CERN)30/05/2017, 17:00
Within the FCC project, the EuroCirCol Work Package 5 is dedicated to the study of the high-field, high-current superconducting dipole magnets. The target performance of these magnets, together with the unprecedented size of the accelerator, poses a number of challenges as, among others, machine integration and protection.
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As for the LHC, dipole magnets have to be powered in long strings,... -
Yuancun Nie (CERN)30/05/2017, 17:00
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Francesco Collamati (INFN)30/05/2017, 17:00
We present in this paper a detailed analysis of the synchrotron radiation emitted by the 50 TeV protons of the FCC-hh in the last bending and quadrupole magnets upstream the interaction region. We discuss the characteristics of this radiation in terms of power, flux, photon spectrum and fans in different running conditions such as, for example, with and without crossing angle.
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We mainly focus... -
Xabier Sarasola (EPFL)30/05/2017, 17:00
The development of High Temperature Superconductor (HTS) dipoles is fundamental for future high magnetic field accelerators. In this context, CERN is currently producing a series of HTS demonstrator dipoles, named FeaTHeR (Five Tesla HTS Research) dipoles. The FeaTHeR-M0 coils are subscale planar racetrack dipoles designed to test fabrication techniques in magnets wound with ReBCO-Roebel...
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Roman Martin (CERN)30/05/2017, 17:00
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Johannes Gutleber (CERN)30/05/2017, 17:30
European Advanced Superconductivity Innovation and Training project (EASItrain)
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Jiayin Gu (DESY)30/05/2017, 17:30
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Dario Mueller (PSI)30/05/2017, 17:50
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Philippe Lebrun (European Scientific Institute (FR))30/05/2017, 18:00
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Janusz Gluza (U. Silesia)30/05/2017, 18:10
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Hermann Schmickler (CERN)30/05/2017, 18:20
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Sven Heinemeyer (CSIC (Madrid, ES))30/05/2017, 18:30
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Davide Tommasini (CERN)31/05/2017, 08:30
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Michelangelo Mangano (CERN)31/05/2017, 08:30
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Jingyu Tang (Institute of High Energy Physics, CAS)31/05/2017, 08:30
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Katsunobu Oide (High Energy Accelerator Research Organization (JP))31/05/2017, 08:30
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Clement Lorin (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))31/05/2017, 08:40
In the framework of the EuroCirCol project the high field accelerator magnet design work package 5 focuses on double-aperture dipole magnets made of Nb3Sn conductors and providing a field of 16 T in a 50-mm aperture. Three options are considered: block-coils, common-coils and cosine-¬theta, the workload being shared between several European institutes. All options are explored and compared...
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Sandra Aumon (CERN)31/05/2017, 08:55
"The FCC-ee project foresees to build a 100 km e+/e- circular collider for precision studies and rare decay observations in the range of 90 to 350 GeV center of mass energy with luminosities in the order of 10^35 cm^-2s^-1. In
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order to reach such performances, an extrem focusing of the beam is required in the interaction regions with a low vertical beta function of 2mm at the IP.
Moreover, the... -
Jianquan Yang (Institute of High Energy Physics (CN))31/05/2017, 08:55
In LHC, the limiting locations in terms of losses on cold magnets are the dispersion suppressors downstream of the transverse collimation insertion. These losses are due to the protons experiencing single diffractive interactions in the primary collimators. How to solve this problem is very important for future proton-proton collider, such as FCC and SPPC. An effective method which arranges...
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Fernando Toral (Centro de Investigaciones Energéti cas Medioambientales y Tecno)31/05/2017, 09:00
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31/05/2017, 09:00
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Vladimir Shiltsev (Fermilab)31/05/2017, 09:15
High intensity and high brightness beams in FCC pose significant challenges due to coherent instabilities and beam collimation. Usual ways to control the instabilities, such as nonlinear octupole magnets, beam feedback dampers, employment of chromatic effects as well as standard types of the "hard-material" collimators become less effective at the ultimate FCC-hh beam paramters. We briefly...
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Vittorio Marinozzi (University of Milan / INFN)31/05/2017, 09:20
In the framework of H2020, the EuroCirCol program has the outcome of producing a conceptual design of the FCC within 2019. One of the main targets is designing a superconducting magnetic dipole able to reach 16 T, in order to bend the beams within energy and size constraints. This magnetic field can be achieved using Nb3Sn conductors at their highest performances.
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Here we present the 2D... -
169. Emittance measurement using X-ray interferomter and proposal for test in Australian SynchrotronToshiyuki Mitsuhashi (KEK)31/05/2017, 09:20
For a demonstration of the performance of the X-ray interferometer, we propose a test at the long-range Imaging and Medical Beamline (IMBL) at the Australian Synchrotron. The Australian Synchrotron is a SR facility in the Australia, and it has a remarkable long range beamline for medical imaging. We can construct a Young’s type double slit interferometer in this beam line which will be...
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Elena Shaposhnikova (CERN)31/05/2017, 09:35
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Clement Lorin (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))31/05/2017, 09:40
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Emilia Cruz Alaniz (University of Oxford JAI)31/05/2017, 10:30
The interaction region is an important and challenging part of the design of any accelerator. An important aspect of this design is the compensation of the errors in the interaction region, necessary not only to control de orbit deviation but also to ensure the long term stability of the beam. Several errors are expected to be found in the lattice; this study contemplates only errors in the...
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Joschka Lingemann (CERN)31/05/2017, 10:30
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Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))31/05/2017, 10:30
The wide range of beam energies of the FCC-ee accelerator presents unique challenges to the interaction region. The lowest beam energy is 45.6 GeV (Z running) and the highest beam energy is 175 GeV (tt running). The lowest beam energy machine will have 1.45 A of beam current while the highest beam energy machine will have 6.6 mA. We present an update of the IR design with emphasis on the...
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Clement Lorin (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))31/05/2017, 10:30
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Leon Van Riesen-Haupt31/05/2017, 10:40
One of the main challenges when designing final focus systems of particle accelerators is maximising the beam stay clear in the strong quadrupole magnets of the inner triplet. Moreover it is desirable to keep the quadrupoles in the inner triplet as short as possible for space and costs reasons but also to reduce chromaticity and simplify corrections schemes. An algorithm that explores the...
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Julia Hrdinka (Vienna University of Technology (AT))31/05/2017, 10:50
We present a first assessment of track reconstruction for the FCC-hh detector. Starting from common DD4hep detector input the simulation and reconstruction geometry is built. Events generated with PYTHIA are merged to create a pile-up scenario and the output is fed into the full (Geant4) or fast track simulation (FATRAS). The simulated output is digitized using a geometrical digitization...
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Haroon Rafique (University of Manchester/Cockcroft Institute)31/05/2017, 10:50
Debris from 50 TeV proton-proton collisions at the main interaction point in the FCC-hh may contribute to the background in the subsequent detector. This cross-talk is of possible concern for the FCC-hh due to the high luminosity and energy of the collider. Monte Carlo simulations with FLUKA have been performed using a full length model of the tunnel between the adjacent points A and B, in...
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Javier Munilla Lopez (CIEMAT)31/05/2017, 10:50
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Michael Kenneth Sullivan (SLAC National Accelerator Laboratory (US))31/05/2017, 10:55
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Alexei Sytov (Universita di Ferrara & INFN (IT))31/05/2017, 11:00
"The FCC-hh collimation system must be designed to prevent quench of superconducting magnets. However, preliminary simulations [1] demonstrate the estimated cleaning inefficiency to be 2 orders less than required. In order to considerably reduce it, we propose a preliminary setup of a double crystal-based collimation system [2].
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The main advantage of the double crystal-based collimation,... -
Valentin Volkl (University of Innsbruck (AT))31/05/2017, 11:10
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Mr Alexander Krainer (CERN)31/05/2017, 11:10
The superconducting magnets in the Dispersion suppressors at the end of the straight sections are the main location for beam losses in cold magnets in the LHC. For the FCC this poses a problem due to the much higher beam energies. The losses in these regions mainly come from off-momentum particles due to proton-proton collisions in the experimental areas, and single-diffractive effects from...
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Barbara Caiffi (INFN Genova)31/05/2017, 11:10
In the framework of H2020, the EuroCirCol project has the outcome of producing a conceptual design of the Future Circular Collider within 2019. One of the main targets is designing a superconducting magnetic dipole able to reach 16 T, in order to bend the beams within energy and size constraints. This magnetic field can be achieved using Nb3Sn conductors at their highest performances.
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The... -
Alexander Novokhatski (SLAC National Accelerator Laboratory (US))31/05/2017, 11:15
We discuss the problem of the Higher Order Modes heating in the Interaction Region of FFC ee. High current beams excite high frequency modes in IR due to very complicated geometry. We analyze the effect of geometrical transitions in IR on the excitation of HOMs. We suggest using a special water-cooled HOM absorber to capture the HOM power.
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David Jean Henri Boutin (CEA)31/05/2017, 11:20
The FCC-hh (Future Hadron-Hadron Circular Collider) is one of the three options considered for the next generation accelerator in high-energy physics as recommended by the European Strategy Group, and the natural evolution of existing LHC. Studies are ongoing about the evaluation of the various magnets mechanical errors and field errors tolerances in the arc sections of FCC-hh, as well as an...
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Alice Robson (Universite de Geneve (CH))31/05/2017, 11:30
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Sergey Arsenyev (CERN)31/05/2017, 11:30
Transverse mode coupling instability (TMCI) can limit the maximum achievable bunch intensity in the FCC-hh. Impedance due to the resistive walls of the beamscreen makes a significant contribution to the TMCI, especially at the injection energy. The proposed laser treatment of the beamscreen surface for e-cloud mitigation might increase the impedance to a level unacceptable from the beam...
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Tiina-Mari Salmi (Tampere University of Technology, Finland)31/05/2017, 11:30
As a part of the Future Circular Collider (FCC) project, the European Circular Energy-Frontier Collider Study (EuroCirCol) is aiming to design a 16 T Nb3Sn accelerator dipole magnet that could be used in a 100 km 100 TeV hadron collider. In addition to provide the required magnetic field, the design aims for a compact and cost-effective magnet. To select the most suitable cross-section type,...
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Evgeny Levichev (Budker Institute of Nuclear Physics (RU))31/05/2017, 11:35
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Vladimir Kornilov (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))31/05/2017, 11:40
Octupole magnets are foreseen in the FCC-hh lattice as a passive mitigation of the transverse collective instabilities. The incoherent betatron tune spread due to octupoles provides Landau damping of the unstable bunch modes. The previous studies for FCC, and estimations for LHC, have considered only the rigid bunch modes. The higher-order modes cause intra-bunch oscillations, which are...
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Lotta Mether (Ecole Polytechnique Federale de Lausanne (CH))31/05/2017, 11:50
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Wolfgang Bartmann (CERN)31/05/2017, 13:30
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Frederick Bordry (CERN)31/05/2017, 13:30
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Alain Blondel (Universite de Geneve (CH))31/05/2017, 13:30
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Michele Selvaggi (CERN)31/05/2017, 13:30
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Susana Izquierdo Bermudez (CERN)31/05/2017, 13:30
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Anders Unnervik (CERN), Lucio Rossi (CERN)31/05/2017, 13:40
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Dr Simone Gilardoni (CERN)31/05/2017, 13:48
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Etienne Rochepault (CERN)31/05/2017, 13:50
The Racetrack Model Magnet (RMM) and the Enhanced Racetrack Model Coil (ERMC), are racetrack test magnets being developed at CERN. Their main goal is to demonstrate, in view of future high field accelerator magnets, that a nominal field of 16 T can be reached in a 50 mm bore, with margins and limited training. Also, this program gives the opportunity of studying field quality, and the...
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Maria Ilaria Besana (CERN)31/05/2017, 13:50
We present radiation calculations for the updated reference geometry of a general purpose FCC-hh detector. The magnet system of this detector consists of a 4T central solenoid and two 4T forward solenoids. Subdetectors are implemented with proper envelopes that leave installation clearances and space for services.
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Eliana Gianfelice-Wendt (Fermi National Accelerator Lab. (US))31/05/2017, 13:50
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Massimo Florio (Università degli Studi e INFN Milano (IT))31/05/2017, 14:00
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Anton Lechner (CERN)31/05/2017, 14:06
The FCC proton beams pose a severe challenge for the robustness of the beam dump and protection devices. Depending on the local beta-function, already a single 50 TeV bunch can induce damage in typical absorber materials presently used at the LHC (e.g. Graphite or carbon composites). In order to safely absorb the FCC beams in a LHC-like dump, the beams need to be sufficiently diluted across...
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Matthias Mentink (CERN)31/05/2017, 14:10
"As part of the Future Circular Collider conceptual design study for hadron-hadron physics (FCC-hh), conceptual designs of detector magnets are being developed that provide sufficiently large bending power to study the particle products resulting from the 100 TeV collisions.
This talk focuses on several topics. Firstly, an overview is given of the various previously considered baseline...
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Dr Anton Bogomyagkov (Budker Institute of Nuclear Physics (RU))31/05/2017, 14:10
The goal of beam energy calibration is to define central mass energy at the interaction point (IP). The most accurate method is resonant depolarization technique with relative error of 1 ppm in single beam energy calibration. The whole procedure consists of measurement of spin precession frequency, and calculations of beam energy averaged over circumference, beam energy at IP and central mass...
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Friedrich Lackner (CERN)31/05/2017, 14:10
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Emanuela Sirtori31/05/2017, 14:20
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Naeem Ahmad Tahir (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))31/05/2017, 14:24
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Bernhard Auchmann (CERN)31/05/2017, 14:30
The CCT (Canted Cosine Theta) Technology has been studied for its suitability for an FCC main dipole in terms of magnetic and mechanical performance, electro-thermal protectability, as well as efficiency. In this paper we present lessons learnt from our search for efficient CCT solutions by means of 2-D magnetic and mechanical simulations, discuss the 3-D periodic mechanical model, as well as...
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Helder Filipe Pais Da Silva (CERN)31/05/2017, 14:30
The design of the FCC-hh Experiment and its magnet system is being conducted and in the meantime, a baseline design has been defined. Part of the study is the feasibility of the integration of the detector in its cavern and to develop the requirements on cavern and shaft dimensions. For system integration, the various subsystems in the detector are not independent and the modularity needs to...
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Jorg Wenninger (CERN)31/05/2017, 14:30
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Andrea Bastianin (Università degli Studi e INFN Milano (IT))31/05/2017, 14:40
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297. Magnetic core and semiconductor switch characterisation for an Inductive Adder kicker generatorDavid Woog (CERN)31/05/2017, 14:42
For the FCC-hh injection kicker magnet system a highly reliable generator is needed. One promising technology to reach the challenging voltage, current, rise time and flat top stability values for this application is an inductive adder (IA) based on high-power semiconductor switches. A prototype IA will be built at CERN to validate the theoretical performance and identify technology limits....
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Henning Kroll (Fraunhofer ISI), Jörn Krupa (Helmholtz Association), Katja Kroschewski (DESY)31/05/2017, 15:00
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31/05/2017, 15:15
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Dmitry Shatilov (Budker Institute of Nuclear Physics (RU))31/05/2017, 15:30
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Dr Antoine Chance (CEA Irfu)31/05/2017, 15:30
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Francis Perez (ALBA Synchrotron - CELLS)31/05/2017, 15:30
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Zbynek Drasal (CERN)31/05/2017, 15:30
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Ezio Todesco (CERN)31/05/2017, 15:50
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Roberto Kersevan (CERN)31/05/2017, 15:50
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Estel Perez Codina (CERN)31/05/2017, 15:50
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Eleonora Belli (Sapienza Universita e INFN, Roma I (IT))31/05/2017, 15:55
FCC-ee is an e+e- circular collider designed to accelerate and collide counter-propagating beams of electrons and positrons. One of the fundamental aspects to be addressed in the design phase is the intensity limitation due to collective effects and the impedance budget. The machine design must be such that the global machine impedance as well as individual equipment do not pose any limits for...
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Werner Riegler (CERN)31/05/2017, 16:10
Muon systems of the FCC detectors will have to cover areas of 1000's of square meters and posses accurate time and coordinate resolutions all at a reasonable cost. Among attractive options is use of newly available SiPMs to readout wavelength shifting fibers imbedded in long extruded scintillator strips. We present results of the test beam studies of such detectors where time resolution of...
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Hermann Schmickler (CERN)31/05/2017, 16:10
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Dmitry Teytelman (Dimtel, Inc.)31/05/2017, 16:15
In a storage ring, interaction between the fundamental impedance of the accelerating cavities and the beam determines such important longitudinal properties as bunch length, synchronous phase, synchrotron frequency, and others. This interaction is especially important in machines with large circumference and high stored beam current. In this work, steady-state beam loading effects will be...
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Giorgio Apollinari (Fermi National Accelerator Lab. (US))31/05/2017, 16:20
The world-wide HEP community has identified the exploitation of physics opportunities at the High Luminosity-LHC (HL-LHC) as one of the highest near-term priorities. Thanks to multi-year R&D programs, Laboratories and Universities in America and Europe have developed technical solutions to increase the LHC luminosity by bringing the Nb3Sn technology for magnets to production readiness. In...
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Ruben Garcia Alia (CERN)31/05/2017, 16:30
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Jim Brooke (University of Bristol (GB))31/05/2017, 16:30
Data acquisition has always been a significant challenge at a hadron collider. The combination of high luminosity and finely segmented detectors yields data rates that far exceed what can be stored permanently. The problem has traditionally been solved using a trigger system, that performs event selection online. In many cases, the trigger system has relied on dedicated detectors, or...
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Masamitsu Aiba (Paul Scherrer Institut (CH))31/05/2017, 16:35
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Qingjin XU (IHEP)31/05/2017, 16:40
IHEP (Beijing, China) is pursuing R&D of high field accelerator magnet technology for recently proposed CEPC-SPPC project, which will need thousands of all-HTS 12T (SPPC) to 24T (SPPC Upgrade) accelerator magnets in the next 20~40 years. A long-term R&D plan has been made aiming to realize the magnets in time. The conceptual design study of the all-HTS (Fe-based superconductor) & Nb3Sn+HTS 12T...
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kazuhito ohmi (KEK)01/06/2017, 08:30
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Joanna Louise Stanyard (CERN)01/06/2017, 08:30
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Jana Faltova (CERN)01/06/2017, 08:30
Requirements and feasibility of the electromagnetic calorimeter (ECAL) in the FCC-hh experiment will be discussed. The ECAL subdetector will have to be able to deal with unprecedented luminosities and very high pile-up. Moreover, very good energy and angular resolution for a wide range of electrons' and photons' momentum is needed in order to meet the demands based on the physics benchmarks.
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A... -
Luis Antonio Gonzalez Gomez (INFN e Laboratori Nazionali di Frascati (IT))01/06/2017, 08:30
The cryogenic beam vacuum system work package (WP 4) is developing a technical design concept for the FCC-hh beam screen based on the requirements and constraints that emerge from the arc design and magnets work packages (WP 2 and WP5). Within this framework, a measurement setup was designed with the goal of determining the photodesorpotion yield, synchrotron radiation heat loads and photo...
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Ignasi Bellafont (Consortium for the Exploitation of the Synchrotron Light Labor)01/06/2017, 08:48
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Dima El Khechen (CERN)01/06/2017, 08:50
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Coralie Neubuser (CERN)01/06/2017, 08:50
The new energy regime of the Future Circular Collider (FCC) in hadron mode with centre of mass energies up to 100\,TeV opens the opportunity for the discovery of physics beyond the standard model. At 100 TeV a large fraction of the W,Z, H bosons and top quarks are produced with a significant boost. It implies an efficient reconstruction of very high energetic objects decaying hadronically and...
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Davide Bozzini (CERN)01/06/2017, 08:50
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Javier Fernandez Topham (Centro de Investigaciones Energéti cas Medioambientales y Tecno)01/06/2017, 09:06
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Ivan Koop (Budker Institute of Nuclear Physics (RU))01/06/2017, 09:10
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Tony Price (University of Birmingham (GB))01/06/2017, 09:10
The number of particles in an electromagnetic shower is proportional to the incident particle energy. A Digital Electromagnetic Calorimeter (DECAL) is a highly granular device that counts the number of particles in a shower rather than the total energy deposited. An improved energy resolution is possible compared to an analogue calorimeter as this should be less sensitive to Landau...
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Guillermo Peon (CERN)01/06/2017, 09:15
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Cedric Garion (CERN)01/06/2017, 09:24
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Sergei Chekanov (Argonne National Laboratory (US))01/06/2017, 09:30
We discuss performance requirements for future hadronic calorimeters in the context of reconstruction of multi-TeV objects (jets, particles) at a 100 TeV collider. For this study, we use a Geant4 simulation of the detector response of the SiFCC detector which is designed to study hadronic jets up to 33 TeV in transverse momentum. We show response and energy resolutions for single particles...
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Chenghui Yu (Institute of High Energy Physics (CN))01/06/2017, 09:30
The baseline of CEPC is a double ring configuration with the circumference of 100km. The booster has the same circumference as main collider ring in the same tunnel with injection energy of 10GeV. The exit energy of the LINAC for electron and positron is 10GeV. The Overall design of CEPC related to accelerator physics will be described in detail.
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Andreas Nettsträter (Fraunhofer-Institut für Materialfluss und Logistik)01/06/2017, 09:35
Logistics is of great importance for the construction, assembly and operation of FCC. During set-up of LHC, logistics already proved to be a key factor. In respect of the size of FCC, logistics is increasing its significance. New concepts, methods and analytics for logistics, supply chain and transport concepts will have a direct impact on the estimation of the feasibility and costs of the...
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Julien Gargiulo (CERN)01/06/2017, 09:42
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Filip Moortgat (CERN), Heather Gray (LBNL)01/06/2017, 10:30
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John Seeman (SLAC)01/06/2017, 10:30
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Soren Prestemon (LBNL)01/06/2017, 10:30
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Fabrizio Niccoli (Universita della Calabria (IT))01/06/2017, 10:30
The ultrahigh-vacuum (UHV) coupling performance of shape memory alloy (SMA) rings was investigated by finite element (FE) simulations and experimental measurements. In particular, the tightening performance of SMA rings, in terms of contact pressure and clamping/unclamping mechanisms, was studied for different values of the initial clearance between ring and vacuum pipe by means of strain...
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Philip Coleman Harris (CERN)01/06/2017, 10:40
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Alexander Zlobin (Fermilab)01/06/2017, 10:50
Fermilab is developing a 15 T Nb3Sn dipole demonstrator for a future very high energy pp collider as a part of the U.S. MDP Plan. The magnet design is based on optimized 60-mm aperture 4-layer shell-type coils and cold iron yoke 600 mm in diameter. The coils are graded between the inner and outer layers to maximize the performance and reduce the cost. Two mechanical structures – one, based on...
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Alejandro Sanz Ull (Eindhoven Technical University (NL))01/06/2017, 10:50
For the FCC, challenging requirements are set for the extraction septum magnets. A scaled up LHC-like beam dump system architecture is not attractive in terms of low maximum field, lattice space requirements and power consumption. To address these challenges whilst respecting the requirements for the reliability and availability of the system, a high field massless septum with a target field...
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Salim Ogur (CERN)01/06/2017, 10:50
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Biagio Di Micco (Universita' degli Studi di Roma Tre e Istituto Nazionale di Fisica Nucleare (INFN))01/06/2017, 11:00
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Shlomo Caspi (Lawrence Berkeley National Lab. (US))01/06/2017, 11:10
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Iryna Chaikovska (Universite de Paris-Sud 11 (FR))01/06/2017, 11:10
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Dr Angelo Infantino (CERN - EN/EA)01/06/2017, 11:10
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Michele Selvaggi (CERN)01/06/2017, 11:15
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Ozgur Etisken01/06/2017, 11:25
The FCC-e+e- injector complex needs to produce and to transport a high-intensity e+/e- beam at a fast repetition rate of about 0.1 Hz for topping up the collider at its collision energy. A basic parameter set exists for all the collider energies, assuming a 10 GeV linac operating with a large number of bunches being accumulated in the existing SPS, which serves as pre-accelerator and damping...
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Ramesh Gupta (BNL)01/06/2017, 11:30
The common coil geometry offers a 2-in-1 conductor friendly block coil dipole design based on simple racetrack (mostly flat) coils with large bend radii. Significate progress has been worldwide since FCC2016 in various designs of 50 mm aperture high field 2-in-1 dipoles based on the common coil geometry. These include designs of (a) 16 T dipoles based entirely on Low Temperature...
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Eliana La Francesca (LNF INFN (IT))01/06/2017, 11:30
"In the Highest Energy Proton Circular Collider ever designed, FCC-hh, a large production of Synchrotron Radiation is expected, which causes significant problems. Thus, it is very important to have an experimental characterization of optical properties of technical surfaces, in particular reflectivity and photo yield. Such material properties are essential ingredients to calculate single- and...
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Orhan Cakir (Ankara University (TR))01/06/2017, 11:35
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Bastian Harer (CERN)01/06/2017, 11:40
The beam lifetime at FCC-ee will be limited to less than one hour, because of radiative Bhaba scattering and beamstrahlung. In order to keep the luminosity on the high level of 10^35 cm^-2s^-1 continuous top-up injection is required. Therefore, besides the collider, that will operate at constant energy, a fast cycling booster synchrotron will be installed in the same tunnel.
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The injection... -
Ryu Sawada (University of Tokyo (JP))01/06/2017, 11:45
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Kei SUGITA (GSI)01/06/2017, 13:30
"GSI proceeds design studies with respect to future requests of FAIR and further projects.
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Beyond the 2 T limit of an iron dominated magnet, a superconducting high field septum magnet is one of the key component of new planned circulare accelerators.
For a higher magnetic field, an 8 T level conceptual 2D design was presented in 2016.
Now analytical calculations were made to acquire the design... -
Norbert Wermes (University of Bonn (DE))01/06/2017, 13:30
Current R&D in Hadron Collider tracking and timing detectors with potential to develop further into the FCC era is reviewed. Silicon strip and pixel detectors have made tracking at LHC rate and radiation conditions at all possible. The increase rate/radiation conditions at the HL-LHC by a factor of 10 compared to today's standard require intense R&D in sensors, readout ASICs, mechanics and...
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Oliver Bruning (CERN)01/06/2017, 13:30
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Laurent Jean Tavian (CERN)01/06/2017, 13:30
Following the update of the European strategy in particle physics, CERN has undertaken an international study of possible future circular colliders beyond the LHC. The study considers several options for very high-energy hadron-hadron, electron-positron and hadron-electron colliders.
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From the cryogenics point of view, the most challenging option is the hadron-hadron collider (FCC-hh) for... -
Dr Daniel Barna (Hungarian Academy of Sciences (HU))01/06/2017, 13:48
The parameters of the FCC-hh ring impose serious requirements on the beam extraction septa, which are very difficult to realize with the technology of the LHC. A device using a superconducting shield to create a field-free region within a strong (3-4 Tesla) magnet was proposed one year ago as a possible solution. The construction of 3 prototypes using different superconducting materials and...
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Peter Kostka (University of Liverpool (GB))01/06/2017, 13:50
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Steffen Kloeppel (TU Dresden)01/06/2017, 14:00
The Nelium concept is a novel approach for highly efficient refrigeration in the temperature range from 25 to 65 K, making it a promising candidate for the cooling of the FCC-hh beam screens. The concept uses a cycle with turbo compressors, which have higher efficiencies compared to classical screw compressors. To achieve acceptable capital cost, a mixture of neon and helium is used which...
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Jan Troska (CERN)01/06/2017, 14:00
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Oliver Bruning (CERN)01/06/2017, 14:05
The Interaction Region (IR) Machine Detector Interface (MDI) for an electron-hadron collider such as the LHeC/FCC-eh combines challenging aspects of both hadron and e+e- colliders. High-field superconducting magnets are needed to provide strong focusing and deflection fields for handling a stiff high-rigidity hadron beam. But we must also protect the electrons from seeing any such large...
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Prof. Alexander Kovalenko (Joint Inst. for Nuclear Research (RU))01/06/2017, 14:06
One of the options being considered for the FCC-hh high energy injector is a superconducting machine replacing the SPS, so to increase the energy from the current 450 GeV to 1.3 TeV. This synchrotron would operate in a cycled mode also to feed experimental areas, much like the SPS nowadays. Due to this specific cycled operation, innovative design and development approaches will be required to...
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Francois Millet01/06/2017, 14:20
Different scenarios of circular colliders are examined and a 100 TeV hadron collider in a 100 km long tunnel is the baseline of the overall infrastructure for the FCC study. Building such a machine requires the development of large unit-capacity cryogenic infrastructures (50 to 100 kW equivalent at 4.5 K) to cool down superconducting accelerator components. The cooling requirements are...
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Attilio Milanese (CERN)01/06/2017, 14:24
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Joanna Louise Stanyard (CERN)01/06/2017, 14:25
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Yasar Onel (The University of Iowa (US))01/06/2017, 14:30
Future circular and linear colliders as well as the Large Hadron Collider in the High-Luminosity era have been imposing unprecedented challenges on the radiation hardness of particle detectors that will be used for specific purposes e.g. forward calorimeters, beam and luminosity monitors.
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We performed research on the radiation-hard active media for such detectors, particularly calorimeters,... -
Max Klein (University of Liverpool (GB))01/06/2017, 14:35
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Paweł Duda (Wroclaw University of Technology)01/06/2017, 14:40
The Future Circular Collider (FCC), with of about 86 km circumference, will be the largest particle accelerator ever constructed. Such a scale entails numerous problems, many of which have never been faced before. One of them is a considerable growth in the length of cryogenic distribution lines. In case of the FCC the maximum length for the distribution line is considered as 8.4 km, what is...
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Frank Zimmermann (CERN)01/06/2017, 15:30
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Arto Niemi (Tampere University of Technology)01/06/2017, 15:30
This contribution presents the first version of the FCC-hh operation schedule and updates estimates on collider turn around cycle. The operational schedule shows planned time for physics operations and maintenance during collider life cycle. The schedule meets requirements for time reserved for physics production. However, this considerably limits the time reserved for maintenance and this...
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Daniel Britzger (Deutsches Elektronen-Synchrotron (DE))01/06/2017, 15:30
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Daniel Schoerling (CERN)01/06/2017, 15:30
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Yuri Nosochkov01/06/2017, 15:45
The High Energy LHC (HE-LHC) proton-proton collider is one of the options being explored in the framework of the Future Circular Collider (FCC) study. The design of the HE-LHC is based on the existing 27-km LHC tunnel with the goal of reaching a centre-of-mass beam energy of about 25 TeV at a peak luminosity of a least 2.5×10^35 (1/cm^2/s). The HE-LHC requires novel dipole magnets, based on...
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Daniel Schoerling (CERN)01/06/2017, 15:50
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Andrea Apollonio (CERN)01/06/2017, 15:50
The achievable level of availability will be one of the main performance indicators for the next generation of particle accelerators. Studies are ongoing for the FCC to model future operation of the collider based on LHC experience. The software ELMAS is used for modelling system fault trees and simulate the achievable integrated luminosity production as a function of different operational...
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Uta Klein (University of Liverpool (GB))01/06/2017, 15:50
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Leon Van Riesen-Haupt01/06/2017, 16:05
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Amalia Ballarino (CERN)01/06/2017, 16:10
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Orhan Cakir (Ankara University (TR))01/06/2017, 16:10
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Thomas Otto (CERN)01/06/2017, 16:15
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Dr Kechen Wang (DESY / IHEP)01/06/2017, 16:25
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Demin Zhou (Japan Atomic Energy Agency JAEA (JP))01/06/2017, 16:25
The talk presents the preliminary results on nonlinear analysis using PTC code, and dynamic aperture calculations using SAD code. Several optics based on different design schemes for HE-LHC will be addressed.
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Lotta Mether (Ecole Polytechnique Federale de Lausanne (CH))01/06/2017, 16:40
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Dr Guilherme Teixeira De Almeida Milhano (LIP-Lisbon & CERN TH)01/06/2017, 16:40
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Markus Widorski (CERN)01/06/2017, 16:40
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Hans Weise (DESY)01/06/2017, 18:00
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Prof. Jörg Blaurock (GSI)01/06/2017, 18:30
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Klinger Thomas (MPI for Plasma Physics)01/06/2017, 19:00
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Dr Antoine Chance (CEA Irfu)02/06/2017, 08:30
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Frank Zimmermann (CERN), Jorg Wenninger (CERN)02/06/2017, 09:00
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John Andrew Osborne (CERN)02/06/2017, 09:30
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Jose Miguel Jimenez (CERN)02/06/2017, 09:45
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Luca Bottura (CERN)02/06/2017, 10:00
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Erk Jensen (CERN)02/06/2017, 10:15
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Andrei Seryi (University of Oxford (GB))02/06/2017, 11:00
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Oliver Bruning (CERN)02/06/2017, 11:15
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Martin Aleksa (CERN)02/06/2017, 11:30
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Alain Blondel (Universite de Geneve (CH))02/06/2017, 12:00
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Michael Benedikt (CERN)02/06/2017, 12:30
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Michael Vogel (University Siegen)
We report on the progress of carbon coating for multipacting mitigation on SRF-Guns. The findings comprise valuable information for e.g. high-energy charged particle accelerators where the beam-induced electron multiplication leads to electron cloud build up on the beam path. Reports have shown secondary electron yields (SEY or δ) of carbon coatings of less than 1 which is sufficient for most...
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Hermann Schmickler (CERN)
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Keith Kershaw (CERN)
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Gerardo Guillermo Canton (Centro de Investigación y de Estudios Avanzados del IPN (MX))
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Enzo Palmieri (INFN)
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Georgios Gerasimos Voutsinas (CERN)
A preliminary study on machine induced backgrounds has been performed for the proposed FCC-ee interaction region (IR) and proto-detector. Synchrotron radiation has the strongest impact on the present design of the IR and both radiation from dipoles and quadrupoles have been taken into account. The effect of luminosity backgrounds like Bhabha and pair production have also been studied. The...
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Matthias Mentink (CERN)
As part of the Future Circular Collider conceptual design study for hadron-hadron physics (FCC-hh), conceptual designs of detector magnets are being developed that provide sufficiently large bending power to study the particle products resulting from the 100 TeV collisions.
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This talk focuses on several topics. Firstly, an overview is given of the various previously considered baseline designs... -
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