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CERN Document Server 580 records found  1 - 10próximoend  jump to record: Search took 0.69 seconds. 
1.
Exploring the potential of resonance islands and bent crystals for a slow extraction from circular hadron accelerators / Veres, D.E. (CERN) ; Giovannozzi, M. (CERN) ; Franchetti, G. (Darmstadt, GSI)
New developments in accelerator physics have broadened the set of available techniques for manipulating charged-particle beams. Adiabatic trapping and transport of beam in resonance islands has been studied and successfully implemented at the CERN Proton Synchrotron to perform multiturn extraction. [...]
arXiv:2409.10928.- 2024-10-21 - 8 p. - Published in : Phys. Rev. Res. 6 (2024) L042018 Fulltext: 2409.10928 - PDF; Publication - PDF;
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2.
Analysis of double-resonance crossing in adiabatic trapping phenomena for quasi-integrable area-preserving maps with time-dependent exciters / Bazzani, Armando (Bologna U. ; INFN, Bologna) ; Capoani, Federico (Bologna U. ; INFN, Bologna) ; Giovannozzi, Massimo (CERN)
In this paper, we analyze the adiabatic crossing of a resonance for Hamiltonian systems when a double-resonance condition is satisfied by the linear frequency at an elliptic fixed point. We discuss in detail the phase-space structure on a class of Hamiltonians and area-preserving maps with an elliptic fixed point in the presence of a time-dependent exciter. [...]
arXiv:2402.18358.- 2024-05-23 - 14 p. - Published in : Phys. Rev. E 109 (2024) 054212 Fulltext: 2402.18358 - PDF; Publication - PDF;
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3.
Shower simulations for the CERN proton synchrotron internal dump and possible shielding options / Niang, Samuel (CERN) ; Huschauer, Alexander (CERN) ; Esposito, Luigi Salvatore (CERN) ; Giovannozzi, Massimo (CERN) ; Pugnat, Thomas (CERN)
During the Long Shutdown 2, the two internal dumps were replaced and successfully integrated into the CERN Proton Synchrotron operation to withstand the intense and bright beams for the High-Luminosity LHC. They function as safety devices, designed to swiftly intersect the beam’s trajectory and effectively stop the beam over multiple turns. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPS37 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPS37
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4.
Harmonic analysis of nonstationary signals with application to LHC beam measurements / Russo, G. (CERN ; Frankfurt U.) ; Franchetti, G. (Darmstadt, GSI) ; Giovannozzi, M. (CERN) ; Maclean, E.H. (CERN)
Harmonic analysis has provided powerful tools to accurately determine the tune from turn-by-turn data originating from numerical simulations or beam measurements in circular accelerators and storage rings. Methods that have been developed since the 1990s are suitable for stationary signals, i.e., time series whose properties do not vary with time and are represented by stationary signals. [...]
arXiv:2409.05406.- 2024-09-01 - 19 p. - Published in : Phys. Rev. Accel. Beams 27 (2024) 094001 Fulltext: Publication - PDF; 2409.05406 - PDF;
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5.
Sorting strategies for the new superconducting magnets for the CERN HL-LHC / Pugnat, Thomas (CERN) ; Wegscheider, Andreas (CERN) ; Todesco, Ezio (CERN) ; Giovannozzi, Massimo (CERN) ; Tomas, Rogelio (CERN)
In a circular collider, precise control of the linear optics in the vicinity of the interaction points plays a crucial role in ensuring optimal operational performance and satisfying the machine protection constraints. Superconducting magnets are affected by unavoidable field errors that impact machine performance, and mitigation strategies are usually put in place to improve the situation. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC16 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC16
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6.
Updated analysis of beam halo measurements in LHC Run 2 and Run 3 / Rakic, Milica (Ecole Polytechnique, Lausanne ; CERN) ; Salvachua, Belen (CERN) ; Montanari, Carlo Emilio (Manchester U. ; CERN) ; Mirarchi, Daniele (CERN) ; Paraschou, Konstantinos (CERN) ; Giovannozzi, Massimo (CERN) ; Hermes, Pascal (CERN) ; Morales Vigo, Sara (CERN) ; Redaelli, Stefano (CERN)
Measurements of the transverse beam halo in the Large Hadron Collider (LHC) provide crucial input for the performance evaluation of the collimation configuration in the High-Luminosity LHC (HL-LHC) era. Such measurements are carried out in various phases of the LHC operational cycle by scraping the beam with movable collimators. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC67 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC67
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7.
Study of the corrector systems for the new lattice of the CERN hadron-hadron Future Circular Collider / Perez-Segurana, Gustavo (CERN) ; Todesco, Ezio (CERN) ; Giovannozzi, Massimo (CERN)
A new layout for the energy-frontier hadron collider (FCC-hh) under study at CERN has been designed, following the constraints imposed by the outcome of recent tunnel placement studies. The new lattice and the need to maximize the dipole filling factor triggered a deep revision of the corrector systems located in the regular arcs, such as orbit, tune, linear coupling, and chromaticity correctors. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) MOPC15 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.MOPC15
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8.
A new baseline layout for the FCC-hh ring / Perez-Segurana, Gustavo (CERN) ; Abramov, Andrey (CERN) ; Zimmermann, Frank (CERN) ; Giovannozzi, Massimo (CERN) ; Benedikt, Michael (CERN) ; Bruce, Roderik (CERN) ; Risselada, Thys (CERN) ; Bartmann, Wolfgang (CERN)
The Future Circular Collider (FCC) study includes two accelerators, a high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh). Both machines share the same tunnel infrastructure. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) MOPC14 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.MOPC14
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9.
Chapter 5: Machine Physics and Performance / Arduini, G (CERN) ; De Maria, R (CERN) ; Giovannozzi, M (CERN) ; Iadarola, G (CERN) ; Métral, E (CERN) ; Papaphilippou, Y (CERN) ; Tomás, R (CERN)
The main beam and machine parameter choices and the underlying beam dynamics considerations are reviewed together with the main challenges and expected performance..
2024 - 44 p. - Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 121-164 Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.121-164
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10.
Chapter 28: Non-linear Optics Measurements and Corrections / Maclean, E H (CERN) ; Carlier, F (CERN) ; Dilly, J W (CERN) ; Giovannozzi, M (CERN) ; Karastathis, N ; Persson, T H B (CERN) ; Tomás, R (CERN)
Nonlinear optics errors in low-β* insertions pose a serious challenge to successful operation of the HL-LHC. LHC experience however has demonstrated that the previously assumed correction strategy, based upon ideal compensation of selected nonlinear resonances, as determined from magnetic measurements, suffers from several limitations. [...]
2024 - 14 p. - Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 579-592 Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.579-592
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Veja também: nomes de autores similares
284 GIOVANNOZZI, M
284 Giovannozzi, M
302 Giovannozzi, Massimo
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