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CERN Document Server 2,048 records found  1 - 10nextend  jump to record: Search took 0.15 seconds. 
1.
(100)
Resonance compensation at the CERN PS booster aided by Bayesian optimization and BOBYQA / Gonzalez-Ortiz, Cristhian (Michigan State U.) ; Asvesta, Foteini (CERN) ; Ainsworth, Robert (Fermilab) ; Prebibaj, Tirsi (CERN)
The CERN Proton Synchrotron Booster (PSB) operation involves the crossing of multiple resonance lines in the tune diagram. Loss maps from dynamic tune scans are a helpful way to visualize and quantify the strength of such resonances. [...]
FERMILAB-CONF-24-0668-AD.- 2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) MOPS17 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.MOPS17
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2.
(91)
Resonance Compensation for High Intensity and High Brightness Beams in the CERN PSB / Asvesta, Foteini (CERN) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Maclean, Ewen (CERN) ; Mikulec, Bettina (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Renner, Elisabeth (CERN ; TU Vienna)
Resonance studies have been conducted during the recommissioning of the CERN Proton Synchrotron Booster (PSB) following the implementation of the LHC Injectors Upgrade (LIU) project. In particular, resonance identification through so-called loss maps has been applied on all four rings of the PSB, revealing various resonances up to fourth order. [...]
2022 - 6 p. - Published in : JACoW HB 2021 (2022) 40-45 Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.40-45
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3.
(76)
Injection Chicane Beta-Beating Correction for Enhancing the Brightness of the CERN PSB Beams / Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Maclean, Ewen (CERN) ; Mikulec, Bettina (CERN) ; Renner, Elisabeth (CERN ; TU Vienna)
In the context of the LHC Injectors Upgrade Project (LIU), the Proton Synchrotron Booster (PSB) developed an H$^{-}$ charge exchange injection system. The four short rectangular dipoles of the injection chicane induce focusing errors through edge focusing and eddy currents. [...]
2022 - 6 p. - Published in : JACoW HB 2021 (2022) 112-117 Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.112-117
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4.
(76)
Experimental Investigations on the High-Intensity Effects Near the Half-Integer Resonance in the PSB / Prebibaj, Tirsi (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Franchetti, Giuliano (Darmstadt, GSI)
Space charge effects are the main limitation for the brightness performance of the Proton Synchrotron Booster (PSB) at CERN. Following the upgrades of the LHC Injectors Upgrade (LIU) project, the PSB delivered unprecedented brightness even exceeding the projected target parameters. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 499-502 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.499-502
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5.
(70)
The PS Booster Alignment Campaign and a New Tune Control Implementation After the LHC Injectors Upgrade at CERN / Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Comblin, Jean-Francois (CERN) ; Di Giovanni, Gian Piero (CERN) ; Hostettler, Michael (CERN) ; Huschauer, Alexander (CERN) ; Mikulec, Bettina (CERN) ; Nonglaton, Jean-Michel (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main))
The CERN PS Booster (PSB) has gone through major upgrades during the Long Shutdown 2 (LS2) and the recommissioning with beam started in December 2020. Two of the aspects leading to improved operation will be described in this paper: a new tune control implementation; and a full re-alignment campaign. [...]
2022 - 6 p. - Published in : JACoW HB 2021 (2022) 89-94 Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.89-94
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6.
(70)
Studies on the Vertical Half-Integer Resonance in the CERN PS Booster / Prebibaj, Tirsi (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Franchetti, Giuliano (Darmstadt, GSI)
Following the upgrades of the LHC Injectors Upgrade Project (LIU), the Proton Synchrotron Booster (PSB) at CERN successfully delivers beams with double brightness. An important contributing factor for this was the dynamic correction of the beta-beating induced by the injection chicane, which allowed stable operation closer to the half-integer resonance. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 222-225 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.222-225
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7.
(68)
Characterization of the Vertical Beam Tails in the CERN PS Booster / Prebibaj, Tirsi (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Renner, Elisabeth (CERN)
The CERN Proton Synchrotron Booster (PSB) went through major upgrades in the framework of the LHC Injectors Upgrade Project (LIU) aiming to double the brightness of the LHC beams. Operation restarted in early 2021, demonstrating the expected performance improvement. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 218-221 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.218-221
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8.
(67)
Optimised Transverse Painting Schemes for the New 160 MeV H$^-$ Injection System at CERN / Renner, Elisabeth (CERN ; TU Vienna) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Mikulec, Bettina (CERN) ; Prebibaj, Tirsi (CERN ; Goethe U., Frankfurt (main)) ; Velotti, Francesco (CERN)
A major aspect of the LHC Injectors Upgrade (LIU) project at CERN is the Proton Synchrotron Booster (PSB) connection to the newly built Linac4 and the related installation of a new 160 MeV H$^-$ charge exchange injection. This contribution presents the first operational experience with the new injection system and its flexibility of applying horizontal phase space painting to tailor different beams to the respective user-defined brightness targets. [...]
2022 - 6 p. - Published in : JACoW HB 2021 (2022) 118-123 Fulltext: PDF;
In : 64th ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB 2021), Batavia, Illinois, United States, 4 - 9 Oct 2021, pp.118-123
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9.
(57)
Analytical and Numerical Studies on Kicked Beams in the Context of Half-Integer Studies / Franchetti, Giuliano (Darmstadt, GSI ; Goethe U., Frankfurt (main) ; Helmholtz Res. Acad. Hesse for FAIR) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Prebibaj, Tirsi (CERN)
In the context of the half-integer studies an investigation of the dynamics of the kicked beam has revealed surprising properties. The coupling of space charge with chromatic- ity in addition to usual damping/non-damping dynamics, exhibits new properties typical of a linear coupling. [...]
2024 - 6 p. - Published in : JACoW HB 2023 (2024) 188-193 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.188-193
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10.
(56)
Pushing High Intensity and High Brightness Limits in the CERN PSB after the LIU Upgrades / Asvesta, Foteini (CERN) ; Albright, Simon (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Prebibaj, Tirsi (CERN)
After the successful completion of the LHC Injectors Upgrade (LIU) project, the CERN Proton Synchrotron Booster (PSB) has produced beams with up to two times higher brightness. However, the efforts to continuously improve the beam quality for the CERN physics experiments are ongoing. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 458-461 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.458-461
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