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1.
Beam coupling impedance of the main extraction kickers in the CERN PS / Neroni, M (CERN ; U. Rome La Sapienza (main)) ; Barnes, M J (CERN) ; Lasheen, A (CERN) ; Mostacci, A (U. Rome La Sapienza (main)) ; Popovic, B (Argonne) ; Vollinger, C (CERN)
In view of the High Luminosity (HL) upgrade of the LHC, thebeam intensity must be doubled in the injector chain. To performreliable beam dynamics simulations, the beam coupling impedance inthe injectors, such as the Proton Synchrotron (PS), must be followedclosely by including all contributing elements into the impedancemodel. [...]
2024 - 12 p. - Published in : JINST 19 (2024) T08001 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.T08001
2.
Recent updates in the impedance characterization of the CERN PS Booster Finemet RF system / Neroni, Michela (CERN ; Rome U.) ; Albright, Simon (CERN) ; Damerau, Heiko (CERN) ; Gnemmi, Giulia (CERN) ; Haase, Matthias (CERN) ; Mostacci, Andrea (Rome U.) ; Paoluzzi, Mauro (CERN) ; Vollinger, Christine (CERN)
During the last long shutdown of the accelerators at CERN (LS2), the main radio frequency system of the Proton Synchrotron Booster (PSB) was upgraded. A widebandsystem with Finemet magnetic alloy cavities driven by solid-state amplifiers replaced several different ferrite-loaded cavities. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC52 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC52
3.
Mitigation of beam coupling impedance for the wire scanners in the CERN Super Proton Synchrotron / Vollinger, Christine (CERN) ; Sullivan, Michael (Rutherford Appleton Laboratory ; CERN) ; Neroni, Michela (CERN ; Rome U.)
The beam wire scanners of the CERN Super Proton Synchrotron (SPS) experienced multiple failures of their carbon wires caused by the high-intensity beam during a very short period in April 2023. Different modifications of the existing instrument were therefore studied to reduce the beam-induced power without compromising its functionality nor negatively affecting the beam coupling impedance. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC51 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC51
4.
Beam Coupling Impedance of the Main Extraction Kickers in the CERN PS / Neroni, Michela (CERN ; U. Rome La Sapienza (main)) ; Barnes, Michael (CERN) ; Lasheen, Alexandre (CERN) ; Mostacci, Andrea (U. Rome La Sapienza (main)) ; Popovic, Branko (Argonne) ; Vollinger, Christine (CERN)
In view of the High Luminosity (HL) upgrade of the LHC, the beam intensity must be doubled in the injector chain. To perform reliable beam dynamics simulations, the beam coupling impedance in the injectors, such as the Proton Synchrotron (PS), must be followed closely by including all contributing elements into the impedance model. [...]
2024 - 5 p. - Published in : JACoW HB 2023 (2024) 178-182 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.178-182
5.
Annual Report 2023 and Phase-I Closeout / Aglieri Rinella, Gianluca
This report summarises the activities of the CERN strategic R&D programme on technologies for future experiments during the year 2023, and highlights the achievements of the programme during its first phase 2020-2023..
CERN-EP-RDET-2024-001 - 208.

6.
Characterization of the longitudinal beam coupling impedance and mitigation strategy for the fast extraction kicker KFA79 in the CERN PS / Neroni, M (CERN ; U. Rome La Sapienza (main)) ; Barnes, M (CERN) ; Ducimetiere, L (CERN) ; Lasheen, A (CERN) ; Mostacci, A (U. Rome La Sapienza (main)) ; Popovic, B (Argonne) ; Trubacova, P (CERN) ; Vollinger, C (CERN)
In the framework of the High Luminosity Upgrade of the LHC (HL-LHC) the beam intensity from the injectors must be doubled while keeping longitudinal beam parameters unchanged. As such, high-quality beams with high intensities are required also from the Proton Synchrotron (PS). [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL150 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL150
7.
Impedance analysis of deformable RF contact bridges for high luminosity LHC / Krkotic, P (CERN) ; Calatroni, S (CERN) ; Neroni, M (CERN) ; Völlinger, C (CERN) ; Salvant, B (CERN) ; Baglin, V (CERN) ; Garion, C (CERN) ; Bregliozzi, G (CERN)
In order to maintain the continuity of the vacuum system wall and comply with beam stability limits, radio frequency contact bridges are utilised as transitional elements in beam vacuum line interconnections. These radio frequency contact bridges must absorb and correct longitudinal, angular, and transverse misalignments brought on by mechanical motions during assembly, alignment, operating phases and thermal influences during accelerator operation. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL153 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL153
8.
Measurement of the SMH16.3 Magnetic Septa / Valente Dos Santos, Miguel (CERN) ; Neroni, Michela (Sapienza Universita e INFN, Roma I (IT)) ; Vollinger, Christine (CERN)
The fast extraction septum PE.SMH16 is used to deflect protons and ions for the extraction transfer line TT2 from SS16 [1] [2]. [...]
CERN-ACC-NOTE-2023-0013.
- 2023. - 11 p.
Full text
9.
Development and Implementation of a RC Snubber to Suppress Breaker Arcing Present in High-Stored-Energy Superconducting Magnet Systems / Singh, S (CERN) ; Neroni, M (CERN) ; Benoit, P (CERN) ; Cure, B (CERN) ; Deelen, N (CERN) ; Dudarev, A (CERN) ; Duront, L (CERN) ; Mentink, M (CERN) ; Ostrega, M (CERN)
Arc suppression Snubbers offer safety in high energy superconducting magnet systems. Large superconducting magnets may have arcing across their breakers at the moment of slow dump initiation resulting from a sudden current redistribution in the powering circuit. [...]
2023 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4700104
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
10.
Strategic R&D Programme on Technologies for Future Experiments - Annual Report 2021 / Aglieri Rinella, Gianluca
This report summarises the activities and main achievements of the CERN strategic R&D programme on technologies for future experiments during the year 2021..
CERN-EP-RDET-2022-006 - 126.


10.17181/CERN-EP-RDET-2022-006

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