2024-08-22
04:34 |
Preliminary Results of the 2023 International Fermilab Booster Studies
/ Eldred, Jeffrey (Fermilab) ; Balcewicz, Michael (Fermilab) ; Schmidt, Frank (CERN) ; Simons, Benjamin (Northern Illinois U.)
An overview is given of the methods and preliminary results from dedicated beam studies on three topics conducted over five days in July 2023. In the first study, the Fermilab Booster magnets were held constant at magnetic fields corresponding to the injection energy. [...]
arXiv:2408.08987; FERMILAB-PUB-24-0231-AD.-
2024-08-30 - 28 p.
- Published in : 10.1088/1748-0221/19/08/T08008
Fulltext: 341817eba4d88332ca85718fb23e6381 - PDF; 2408.08987 - PDF; FERMILAB-PUB-24-0231-AD - PDF; External link: Fermilab Accepted Manuscript
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.
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2024-08-21
17:49 |
SPS Fast Spill Monitor Characterisation and Evaluation Throughout 2023
/ Benitez Berrocal, Sara (CERN) ; Belohrad, David (CERN) ; Burger, Stephane (CERN) ; Goldblatt, Aurelie Noelle (CERN) ; Martin Nieto, Miguel (CERN) ; Mazzoni, Stefano (CERN) ; Roncarolo, Federico (CERN)
Monitoring the intensity of protons extracted from the CERN Super Proton Synchrotron )SPS) ring towards the North Area (NA) facility at a high rate is of utmost importance, with increasing challenges, for the the current facility operation, the ongoing NA consolidation, and the future Physics Beyond Colliders (PBC) projects. Various instruments are being developed to measure beam current fluctuations across a broad range of frequencies, from a few hundred Hz to several hundred MHz. [...]
CERN-PBC-Notes-2024-005.-
Geneva : CERN, 2023 - 14.
Fulltext: PDF;
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2024-08-12
10:39 |
Understanding of the new horizontal instability at the PS Booster after LIU
/ Antuono, Chiara (Sapienza Universita e INFN, Roma I (IT)) ; Zannini, Carlo (CERN) ; Rumolo, Giovanni (CERN) ; Asvesta, Foteini (CERN) ; Migliorati, Mauro (Sapienza Universita e INFN, Roma I (IT))
Following the LHC Injectors Upgrade (LIU) project at CERN, the Proton Synchrotron Booster (PSB) has been upgraded to operate with a new injection kinetic energy of 160 MeV and an extraction energy of 2 GeV. To understand the performance of the accelerator in this new energy range, a series of measurements have been conducted, especially devoted to the beam stability to ensure the optimal operation of the machine. [...]
CERN-PBC-CONF-2024-010.-
Geneva : CERN, 2024 - 4.
- Published in : Link to proceedings
pdf file: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.2594-2597
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2024-08-09
15:30 |
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2024-08-08
14:28 |
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2024-08-07
04:10 |
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2024-08-07
04:08 |
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2024-08-07
04:05 |
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Seeding of proton bunch self-modulation by an electron bunch in plasma
/ Verra, L. (CERN ; Munich, Max Planck Inst. ; Munich, Tech. U.) ; Zevi Della Porta, G. (CERN) ; Moon, K.-J. (UNIST, Ulsan) ; Bachmann, A.-M. (Munich, Max Planck Inst.) ; Gschwendtner, E. (CERN) ; Muggli, P. (Munich, Max Planck Inst.)
The AWAKE experiment relies on the self-modulation instability of a long proton bunch to effectively drive wakefields and accelerate an electron bunch to GeV-level energies. [...]
arXiv:2106.12414.
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4 p.
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2024-08-06
07:33 |
Chapter 29: The Role of Noise on Beam Stability and Performance in HL-LHC
/ Buffat, X (CERN) ; Furuseth, S V (CERN ; Ecole Polytechnique, Lausanne ; IPT, Lausanne) ; Métral, E (CERN) ; Pieloni, T (Ecole Polytechnique, Lausanne ; IPT, Lausanne) ; Tambasco, C (Ecole Polytechnique, Lausanne ; IPT, Lausanne) ; Valuch, D (CERN)
The beam response to an external excitation may result in a growth of the emittance, or more generally a modification of its particle distribution. The former reduces the luminosity, and the latter might lead to a loss of Landau damping of coherent instabilities. [...]
2024 - 9 p.
- Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 593-601
Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.593-601
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2024-08-06
07:33 |
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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