Search Results - "Papaphilippou, Y."

Long term stability studies in the presence of crab cavities and high order multipoles in the CERN super proton synchrotron and high luminosity large hadron collider by Alekou, A., Appleby, R.B., Cruz-Alaniz, E., Bartosik, H., Carlà, M., Kostoglou, S., Papaphilippou, Y.

“…In 2018 the world’s first Crab Cavity (CC) experiments with protons were successfully performed, aiming to study the CC effect on a proton beam and evaluate…”
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Application of high order symplectic integration methods with forward integration steps in beam dynamics by Skoufaris, K., Laskar, J., Papaphilippou, Y., Skokos, Ch

“…The Hamiltonian describing particle motion in an accelerator belongs to a large class of systems, the members of which can be integrated with a new set of high…”
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Top-up injection schemes for future circular lepton collider by Aiba, M., Goddard, B., Oide, K., Papaphilippou, Y., Saá Hernández, Á., Shwartz, D., White, S., Zimmermann, F.

“…Top-up injection is an essential ingredient for the future circular lepton collider (FCC-ee) to maximize the integrated luminosity and it determines the design…”
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Analytical considerations for linear and nonlinear optimization of the theoretical minimum emittance cells: Application to the Compact Linear Collider predamping rings by Antoniou, F., Papaphilippou, Y.

“…The theoretical minimum emittance cells are the optimal configurations for achieving the absolute minimum emittance, if specific optics constraints are…”
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Impact of non-Gaussian beam profiles in the performance of hadron colliders by Papadopoulou, S., Antoniou, F., Argyropoulos, T., Hostettler, M., Papaphilippou, Y., Trad, G.

“…At the Large Hadron Collider (LHC), the interplay between a series of effects, including intrabeam scattering (IBS), synchrotron radiation, longitudinal beam…”
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Emittance reduction with variable bending magnet strengths: Analytical optics considerations and application to the Compact Linear Collider damping ring design by Papadopoulou, S., Antoniou, F., Papaphilippou, Y.

“…One of the main challenges of the lattice design of synchrotrons, used as light sources or damping rings (DRs), is the minimization of the emittance. The…”
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CERN Super Proton Synchrotron and an alternative design as prebooster ring for the future circular collider e + e − injector complex by Etisken, O., Antoniou, F., Papaphilippou, Y., Tydecks, T., Zimmermann, F., Ciftci, A. K., Oide, K.

“…The Future Circular Collider (FCC) e^{+}e^{-} injector complex needs to produce and transport high-intensity e^{+} and e^{-} beams at a fast repetition rate…”
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Refined betatron tune measurements by mixing beam position data by Zisopoulos, P., Papaphilippou, Y., Laskar, J.

“…The measurement of the betatron tunes in a circular accelerator is of paramount importance due to their impact on beam dynamics. The resolution of the these…”
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First experimental evidence of a beam-beam long-range compensation using wires in the Large Hadron Collider by Poyet, A., Bertarelli, A., Carra, F., Fartoukh, S. D., Fuster-Martínez, N., Karastathis, N., Papaphilippou, Y., Pojer, M., Redaelli, S., Rossi, A., Skoufaris, K., Solfaroli Camillocci, M., Sterbini, G.

“…In high intensity and high energy colliders, such as the CERN Large Hadron Collider (LHC) and its future high-luminosity upgrade, interactions between the two…”
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Simulation of beam–beam interaction with crab cavities for LHC upgrade by Qiang, J., Paret, S., Ratti, A., Barranco, J., Pieloni, T., Arduini, G., Buffat, X., Papaphilippou, Y.

“…The crab cavities are a critical component in the high luminosity LHC upgrade project to compensate the luminosity loss from large crossing angle collision…”
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Tune modulation effects for colliding beams in the High Luminosity Large Hadron Collider by Kostoglou, S., Bartosik, H., Papaphilippou, Y., Sterbini, G., Triantafyllou, N.

“…Several transverse noise sources, such as power supply ripple, can potentially act as an important limiting mechanism for the luminosity production of the…”
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Impact of beam coupling impedance on crab cavity noise induced emittance growth by Triantafyllou, N., Antoniou, F., Bartosik, H., Baudrenghien, P., Buffat, X., Calaga, R., Papaphilippou, Y., Mastoridis, T., Wolski, A.

“…Crab cavities will be deployed as a part of the High Luminosity Large Hadron Collider (HL-LHC) upgrade to mitigate the luminosity reduction induced by the…”
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Identification and characterization of high order incoherent space charge driven structure resonances in the CERN Proton Synchrotron by Asvesta, F., Bartosik, H., Gilardoni, S., Huschauer, A., Machida, S., Papaphilippou, Y., Wasef, R.

“…Space charge is typically one of the performance limitations for the operation of high intensity and high brightness beams in circular accelerators. In the…”
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Numerical optimization of dc wire parameters for mitigation of the long range beam-beam interactions in High Luminosity Large Hadron Collider by Skoufaris, K., Fartoukh, S., Papaphilippou, Y., Poyet, A., Rossi, A., Sterbini, G., Kaltchev, D.

“…Several configurations of the High Luminosity Large Hadron Collider, whose performance at collision is mainly limited due to the strong beam-beam long-range…”
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Impact of the 50 Hz harmonics on the beam evolution of the Large Hadron Collider by Kostoglou, S., Arduini, G., Papaphilippou, Y., Sterbini, G., Intelisano, L.

“…Harmonics of the mains frequency (50 Hz) have been systematically observed in the transverse beam spectrum of the Large Hadron Collider (LHC) since the start…”
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Origin of the 50 Hz harmonics in the transverse beam spectrum of the Large Hadron Collider by Kostoglou, S., Arduini, G., Papaphilippou, Y., Sterbini, G., Intelisano, L.

“…Since the beginning of the Large Hadron Collider (LHC) commissioning, spectral components at harmonics of the mains frequency (50 Hz) have been observed in the…”
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Design of beam optics for the future circular collider e + e − collider rings by Oide, K., Aiba, M., Aumon, S., Benedikt, M., Blondel, A., Bogomyagkov, A., Boscolo, M., Burkhardt, H., Cai, Y., Doblhammer, A., Haerer, B., Holzer, B., Jowett, J. M., Koop, I., Koratzinos, M., Levichev, E., Medina, L., Ohmi, K., Papaphilippou, Y., Piminov, P., Shatilov, D., Sinyatkin, S., Sullivan, M., Wenninger, J., Wienands, U., Zhou, D., Zimmermann, F.

“…A beam optics scheme has been designed for the future circular collider-e+e− (FCC-ee). The main characteristics of the design are: beam energy 45 to 175 GeV,…”
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Luminosity scans for beam diagnostics by Hostettler, M., Fuchsberger, K., Papotti, G., Papaphilippou, Y., Pieloni, T.

“…A new type of fast luminosity separation scans (“emittance scans”) was introduced at the CERN Large Hadron Collider (LHC) in 2015. The scans were performed…”
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Design of Nb3Sn Wiggler Magnets for the Compact Linear Collider and Manufacturing of a Five-Coil Prototype by Garcia Fajardo, L., Antoniou, F., Bernhard, A., Ferracin, P., Mazet, J., Papadopoulou, S., Papaphilippou, Y., Perez, J. C., Schoerling, D.

“…To achieve the luminosity requirements of the Compact Linear Collider (CLIC) at the collision point, damping rings (DRs) equipped with superconducting wiggler…”
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Observation of picometer vertical emittance with a vertical undulator by Wootton, K P, Boland, M J, Dowd, R, Tan, Y-R E, Cowie, B C C, Papaphilippou, Y, Taylor, G N, Rassool, R P

“…Using a vertical undulator, picometer vertical electron beam emittances have been observed at the Australian Synchrotron storage ring. An APPLE-II type…”
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