CERN Accelerating science

CERN Document Server Намерени са 2,050 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.61 секунди. 
1.
Performance of the Ion Chain at the CERN Injector Complex and Transmission Studies During the 2023 Slip Stacking Commissioning / Slupecki, Maciej (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Angoletta, Maria Elena (CERN) ; Argyropoulos, Theodoros (CERN) ; Bartosik, Hannes (CERN) ; Baudrenghien, Philippe (CERN) ; Bellodi, Giulia (CERN) ; Bozzolan, Michele (CERN) ; Bruce, Roderik (CERN) et al.
The 2023 run has been decisive for the LHC Ion Injector Complex. It demonstrated the capability of producing full trains of momentum slip stacked lead ions in the SPS. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 418-421 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.418-421
2.
Linac3, LEIR and PS Performance with Ions in 2021 and Prospects for 2022 / Biancacci, Nicolo (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Alves, Diogo (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bertolo, Sebastien (CERN) ; Bodart, Dominique (CERN) et al.
CERN accelerators underwent a period of long shutdown from the end of 2018 to 2020. During this time frame, significant hardware and software upgrades have been put in place to increase the performance of both proton and ion accelerator chains in the High Luminosity LHC era. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 1983-1986 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1983-1986
3.
Exploring Space Charge and Intra-beam Scattering Effects in the CERN Ion Injector Chain / Waagaard, Elias (CERN) ; Bartosik, Hannes (CERN)
As of today, the LHC ion physics programme is mostly based on Pb ion collisions. The ALICE3 detector proposal requests significantly higher nucleon-nucleon luminosities, as compared to today¿s operation. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 515-518 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.515-518
4.
Overview of the Machine Learning and Numerical Optimiser Applications on Beam Transfer Systems for LHC and Its Injectors / Velotti, Francesco (CERN) ; Barnes, Michael (CERN) ; Carlier, Etienne (CERN) ; Dutheil, Yann (CERN) ; Fraser, Matthew (CERN) ; Goddard, Brennan (CERN) ; Magnin, Nicolas (CERN) ; Ramjiawan, Rebecca (CERN) ; Renner, Elisabeth (CERN) ; Van Trappen, Pieter (CERN) et al.
Machine learning and numerical optimisation algorithms are getting more and more popular in the accelerator physics community and, thanks to the computing power available, their application in daily operation more likely. In the CERN accelerator complex, and specifically on the beam transfer systems, many promising exploitation of these numerical tools have been put in place in the last years. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 961-964 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.961-964
5.
Digital Low-Level RF System for the CERN Linac3 Accelerator / Valuch, Daniel (CERN) ; Alemany-Fernández, Reyes (CERN) ; Brischetto, Ylenia (CERN) ; Faeroe, Sindre (CERN) ; Piccinini, Giampaolo (CERN) ; Soderen, Martin (CERN)
A major consolidation of the aging RF system of the CERN Linac3, the ion source for the whole CERN accelerator chain, started during the Long Shutdown II. The main changes were an upgrade of the analogue Low-Level RF system (LLRF) and replacement of the 350 kW tube amplifiers by a solid-state equivalent. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 853-856 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.853-856
6.
Specifications and Status of the New Electron Cooler for the CERN Antiproton Decelerator (AD) / Rossi, Adriana (CERN) ; Accettura, Carlotta (CERN) ; Andreazza, William (CERN) ; Bollazzi, Alessio (CERN) ; Cenede, Jean (CERN) ; Chritin, Nicolas (CERN) ; Coutron, Yannick (CERN) ; Ferreira Somoza, Jose (CERN) ; Frassier, Alexandre (CERN) ; Gamba, Davide (CERN) et al.
A new electron cooler for the Antiproton Decelerator (AD) is being designed at CERN, and will replace the current device (in operation for more than 40 years), during the next Long Shutdown (2026-2028). The functional specifications [ref. [...]
2024 - 6 p. - Published in : JACoW COOL 2023 (2024) 5-10 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.5-10
7.
Low-Energy Negative Ion Injection Beamline for Experiments with Antiprotonic Atoms at AEgIS / Rodin, Volodymyr (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Cerchiari, Giovanni (Innsbruck U.) ; Doser, Michael (CERN) ; Farricker, Aaron (U. Liverpool (main)) ; Khatri, Ghanshyambhai (CERN) ; Kornakov, Georgy (Warsaw U. of Tech. (main)) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.)
Interaction of low-energy antiprotons with nuclear targets provided fundamental knowledge about proton and neutron densities of many nuclei through the capture process, cascade on lower electron orbits, and annihilation with the nucleon. The expelled electrons produce X-rays and with the recoil particles after annihilation, thus, a sufficient amount of information can be obtained about this interaction. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 2126-2129 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2126-2129
8.
A Test Bench for Characterizing Electron Cooler Components at up to -80 kVDC / Khatri, Ghanshyambhai (CERN) ; Cenede, Jean (CERN) ; Frassier, Alexandre (CERN) ; Tranquille, Gerard (CERN)
During the upcoming Long Shutdown 3 (LS3), the electron cooler of CERN’s Antiproton Decelerator (AD) will be replaced by a new electron cooler. The present electron cooler operates at the maximum energy of about 27keV. [...]
2024 - 4 p. - Published in : JACoW COOL 2023 (2024) THPOSRP06 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.THPOSRP06
9.
A Response Matrix Approach to Skew-Sextupole Correction in the LHC at Injection / Waagaard, Elias (CERN ; Uppsala U. (main)) ; Maclean, Ewen (CERN)
To date, no dedicated attempt has been made to correct the skew-sextupole (𝑎3 ) 3𝑄𝑦 resonance in the LHC at injection. This topic has recently gained interest, following investigation of the emittance growth during the LHC energy ramp due to third-order islands. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 1987-1990 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1987-1990
10.
Achievements and Performance Prospects of the Upgraded LHC Injectors / Kain, Verena (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Angoletta, Maria Elena (CERN) ; Antoniou, Fanouria (CERN) ; Argyropoulos, Theodoros (CERN) ; Asvesta, Foteini (CERN) ; Balhan, Bruno (CERN) ; Barnes, Michael (CERN) ; Barrientos, Diego (CERN) et al.
To provide HL-LHC performance, the CERN LHC injector chain underwent a major upgrade during an almost 2-year-long shutdown. In the first half of 2021 the injectors were gradually re-started with the aim to reach at least pre-shutdown parameters for LHC as well as for fixed target beams. [...]
2022 - 6 p. - Published in : JACoW IPAC 2022 (2022) 1610-1615 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1610-1615

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