2024-06-15
11:07 |
Performance of the CERN Proton Synchrotron internal dump: numerical simulation studies and comparison with beam measurements
/ Niang, S (CERN) ; Pugnat, T (CERN) ; Domange, D (Brussels U.) ; Esposito, L S (CERN) ; Giovannozzi, M (CERN) ; Gnacadja, E (Brussels U.) ; Hernalsteens, C (CERN) ; Huschauer, A (CERN) ; Tesse, R (Brussels U.)
In the framework of the LHC Injector Upgrade project, a newinternal dump for the CERN Proton Synchrotron (PS) ring has beendesigned, installed, and successfully commissioned. This device isdesigned to move rapidly into the beam and stop charged particlesover several thousand turns to provide protection to PS hardwareagainst beam-induced damage. [...]
2024 - 21 p.
- Published in : JINST 19 (2024) T06002
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.T06002
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2024-06-15
11:07 |
Recent advances in the CERN PS impedance model and instability simulations following the LHC Injectors Upgrade project
/ Joly, S (Rome U. ; CERN) ; Oeftiger, A (Darmstadt, GSI) ; Iadarola, G (CERN) ; Zannini, C (CERN) ; Migliorati, M (Rome U.) ; Mounet, N (CERN) ; Salvant, B (CERN)
Transverse instability growth rates in the CERN ProtonSynchrotron (PS) are studied thanks to the recently updatedimpedance model of the machine. Using this model, macroparticletracking simulations were performed with a new method well-suitedfor the slicing of short wakes, which achieves comparableperformance to the originally implemented method while reducing therequired number of slices by a factor of 5 to 10. [...]
2024 - 24 p.
- Published in : JINST 19 (2024) P04018
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.P04018
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2024-06-15
11:07 |
Linac4 Source and Low Energy Experience and Challenges
/ Sargsyan, Edgar (CERN) ; Bellodi, Giulia (CERN) ; Di Lorenzo, Francesco (CERN) ; Etxebarria Erdoiza, Jone (CERN) ; Lallement, Jean-Baptiste (CERN) ; Lombardi, Alessandra (CERN) ; O'Neil, Michael (CERN)
At the end of Long Shutdown 2 (LS2), in 2020 Linac4 became the new injector of CERN’s proton accelerator complex. The previous version of the Linac4 H⁻ ion source (IS03), produced an operational pulsed peak beam current of 35 mA, resulting in 27 mA after the Radio-Frequency Quadrupole (RFQ). [...]
2024 - 7 p.
- Published in : JACoW HB: 2023 (2024) , pp. WEA4I2
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.WEA4I2
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2024-06-05
09:40 |
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2024-05-30
14:23 |
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2024-05-24
11:06 |
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2024-04-18
12:07 |
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2024-04-16
15:04 |
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2024-04-03
14:53 |
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2024-03-28
09:17 |
Investigation on different materials after pulsed high field conditioning and low-energy H- irradiation
/ Serafim, C (CERN ; Helsinki U.) ; Peacock, R (CERN) ; Calatroni, S (CERN) ; Djurabekova, F (Helsinki U.) ; Perez Fontenla, A T (CERN) ; Wuensch, W (CERN) ; Sgobba, S (CERN) ; Grudiev, A (CERN) ; Lombardi, A (CERN) ; Sargsyan, E (CERN) et al.
During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss, which can cause surface modification, including blistering, which can result in reduced electric field holding and an increased breakdown rate. [...]
2024 - 8 p.
- Published in : Front. Phys. 12 (2024) 1308455
Fulltext: PDF;
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