CERN Accelerating science

CERN Document Server 6 registres trobats  La cerca s'ha fet en 0.58 segons. 
1.
Amorphous Carbon Coating in SPS / Vollenberg, Wil (CERN) ; Chiggiato, Paolo (CERN) ; Costa Pinto, Pedro (CERN) ; Cruikshank, Paul (CERN) ; Moreno, Harold (CERN) ; Pasquino, Chiara (CERN) ; Perez Espinos, Jaime (CERN) ; Taborelli, Mauro (CERN)
Within the LHC Injector Upgrade (LIU) project, the Super Proton Synchrotron (SPS) needs to be upgraded to inject into the LHC higher intensity and brighter 25-ns bunch spaced beams. To mitigate the Electron Multipacting (E.M.) phenomenon, a well-known limiting factor for high-intensity positively charged beams, CERN developed carbon coatings with a low Secondary Electron Yield (SEY). [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3475-3478 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3475-3478
2.
LHC Injectors Upgrade Project: Outlook of the Modifications to the Super Proton Synchrotron (SPS) Vacuum System and Impact on the Operation of the Carbon-Coated Vacuum Chambers / Pasquino, Chiara (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chiggiato, Paolo (CERN) ; Cruikshank, Paul (CERN) ; Farricker, Aaron (CERN) ; Harrison, Anthony (CERN) ; Perez Espinos, Jaime (CERN) ; Somoza, Jose (CERN) ; Taborelli, Mauro (CERN) ; Vollinger, Christine (CERN) et al.
Aiming at doubling the beam intensity and reducing the beam emittance [1], significant modifications of the LHC injector chain will take place during Long Shutdown 2 (LS2), starting from 2019. The LIU project (LHC Injector Upgrade) [2], in the specific, touches Linac4, the Proton Synchrotron Booster (PSB), the Proton Synchrotron (PS), the Super Proton Synchrotron (SPS). [...]
2018 - 3 p. - Published in : 10.18429/JACoW-IPAC2018-WEPMF087 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPMF087
3.
Optimising Machine-Experiment Interventions in HL-LHC / Sanchez Galan, Francisco (CERN) ; Adorisio, Cristina (CERN) ; Bergstrom, Ida (CERN) ; Brethoux, Damien (CERN) ; Evrard, Sebastien (CERN) ; Gaddi, Andrea (CERN) ; Krzkempek, Lukasz (CERN) ; Lazzaroni, Michael (CERN) ; Perez Espinos, Jaime (CERN) ; Raymond, Michel (CERN) et al.
The luminosity reach of the HL-LHC experiments implies new constraints for the protection of the inner triplets from the machine debris. In general activation levels will increase a factor of 15-30 from the 2015 values (LS1), affecting both radiation tolerance of equipment and maintenance scenarios. [...]
CERN-ACC-2017-193.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-WEPVA114 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPVA114
4.
Amorphous Carbon Thin Film Coating of the SPS Beamline: Evaluation of the First Coating Implementation / Van Gompel, Matthias (CERN) ; Chiggiato, Paolo (CERN) ; Costa Pinto, Pedro (CERN) ; Cruikshank, Paul (CERN) ; Pasquino, Chiara (CERN) ; Perez Espinos, Jaime (CERN) ; Sapountzis, Antonios (CERN) ; Taborelli, Mauro (CERN) ; Vollenberg, Wilhelmus (CERN)
As part of the LHC Injector Upgrade (LIU) project, the Super Proton Synchrotron (SPS) must be upgraded in order to inject in the LHC 25 ns bunch spaced beams of higher intensity. To mitigate the Electron Multipacting (EM) phenomenon in the SPS, CERN developed thin film carbon coatings with a low Secondary Electron Yield (SEY). [...]
CERN-ACC-2017-304.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOOCA3 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOOCA3
5.
Analysis and Testing of a New RF Bridge Concept as an Alternative to Conventional Sliding RF Fingers in LHC / Perez Espinos, Jaime (CERN) ; Garion, Cedric (CERN)
RF fingers are used as transition elements in beam vacuum line interconnections to ensure the continuity of the vacuum system wall within acceptable beam stability requirements. The RF fingers must absorb and compensate longitudinal, angular and transversal misalignments due to both thermal effects, during bake-out or cooldown processes, and mechanical movements during assembly, alignment, commissioning and operation phases. [...]
CERN-ACC-2016-158.- 2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-THPMY006 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMY006
6.
Removing Known SPS Intensity Limitations for High Luminosity LHC Goals / Shaposhnikova, Elena (CERN) ; Argyropoulos, Theodoros (CERN) ; Bohl, Thomas (CERN) ; Cruikshank, Paul (CERN) ; Goddard, Brennan (CERN) ; Kaltenbacher, Thomas (CERN) ; Lasheen, Alexandre (CERN) ; Perez Espinos, Jaime (CERN) ; Repond, Joël (CERN) ; Salvant, Benoit (CERN) et al.
In preparation of the SPS as an LHC injector its impedance was significantly reduced in 1999 - 2000. A new SPS impedance reduction campaign is planned now for the High Luminosity (HL)-LHC project, which requires bunch intensities twice as high as the nominal one. [...]
CERN-ACC-2016-289.- 2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-MOPOY058 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPOY058

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