CERN Accelerating science

SPS and CNGS

Darreres entrades:
2017-10-17
07:02
Impact of LHC and SPS Injection Kicker Rise Times on Lhc Filling Schemes and Luminosity Reach / Bartmann, Wolfgang (CERN) ; Barnes, Michael (CERN) ; Boyd, Jamie (CERN) ; Carlier, Etienne (CERN) ; Chmielinska, Agnieszka (CERN) ; Goddard, Brennan (CERN) ; Kotzian, Gerd (CERN) ; Schwick, Christoph (CERN) ; Stoel, Linda (CERN) ; Valuch, Daniel (CERN) et al.
The 2016 LHC proton filling schemes generally used a spacing between injections of batches of bunches into SPS and LHC corresponding to the design report specification for the SPS and LHC injection kicker rise times, respectively. A reduction of the batch spacing can be directly used to increase luminosity without detrimental effects on beam stability, and with no increase in the number of events per crossing seen by the experiments. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-TUPVA007 Fulltext: PDF;

Registre complet - Registres semblants
2017-10-17
07:02
Installation and Test of Pre-series Wire Scanners for the LHC Injector Upgrade Project at CERN / Veness, Raymond (CERN) ; Andersson, Patrik (CERN) ; Andreazza, William (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Emery, Jonathan (CERN) ; Goldblatt, Aurélie (CERN) ; Gudkov, Dmitry (CERN) ; Roncarolo, Federico (CERN) ; Sirvent, Jose (CERN) et al.
A new generation of fast wire scanners is being developed for the LHC Injectors Upgrade (LIU) project at CERN. These will be essential tools for transverse profile measurement with the higher brightness LIU beams, and are planned for installation in 2019 in all three synchrotrons making up the LHC injector chain. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB121 Fulltext: PDF;

Registre complet - Registres semblants
2017-10-17
07:02
Control of Intra-Bunch Vertical Instabilities at the SPS - Measurements and Technology Demonstration / Fox, John (SLAC) ; Bartosik, Hannes (CERN) ; De Santis, Stefano (LBNL, Berkeley) ; Dusatko, John (SLAC) ; Höfle, Wolfgang (CERN) ; Li, Kevin (CERN) ; Métral, Elias (CERN) ; Rivetta, Claudio (SLAC) ; Salvant, Benoit (CERN) ; Turgut, Ozhan (SLAC) et al.
We present recent measurements demonstrating control of unstable beam motion in single bunch and bunch train configurations at the SPS. The work is motivated by anticipated intensity increases from the LIU and HL-LHC upgrade programs, and has included the development of a GHz bandwidth reconfigurable 4 GS/S signal processor with wideband kickers and associated amplifiers. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-TUPIK119 Fulltext: PDF;

Registre complet - Registres semblants
2017-10-17
07:02
Development of a New System for Detailed LHC Filling Diagnostics and Statistics / Calia, Andrea (CERN) ; Fuchsberger, Kajetan (CERN) ; Hemelsoet, Georges-Henry (CERN) ; Jacquet, Delphine (CERN)
In the CERN accelerator complex the Super Proton Synchrotron (SPS) is used as injector of the Large Hadron Collider (LHC). Statistics on the injection and beam availability in 2015 showed that too much time is spent at injection. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-TUPIK088 Fulltext: PDF;

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2017-10-17
07:02
Data Acquisition and Controls Integration of the AWAKE Experiment at CERN / Olsen, Veronica (Oslo U.) ; Batkiewicz, Jozef (CERN) ; Deghaye, Stephane (CERN) ; Gessner, Spencer (CERN) ; Gschwendtner, Edda (CERN) ; Muggli, Patric (Munich, Max Planck Inst.)
The AWAKE experiment has been successfully installed in the CNGS facility at CERN, and is currently in its first stage of operation. The experiment seeks to demonstrate self-modulation of an SPS proton beam in a rubidium plasma, driving a wakefield of several gigavolt per meter. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-TUPIK061 Fulltext: PDF;

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2017-10-17
07:02
SPS Studies in Preparation for the Crab Cavity Experiment / Alekou, Androula (CERN ; U. Manchester (main) ; CERN) ; Antoniou, Fanouria (CERN ; CERN) ; Appleby, Robert (U. Manchester (main) ; U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Arduini, Gianluigi (CERN ; CERN) ; Bartosik, Hannes (CERN ; CERN) ; Calaga, Rama (CERN ; CERN) ; Papaphilippou, Yannis (CERN ; CERN ; CERN) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.)
A local Crab Cavity (CC) scheme will recover head-on collisions at the Interaction Points (IPs) of the High Luminosity LHC (HL-LHC), which aims to increase the LHC luminosity by a factor of 3-10. The first time that CC will ever be tested with proton beams will be in 2018 in the SPS machine. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-TUPVA034 Fulltext: PDF;

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2017-10-17
07:02
The LHC Injectors Upgrade (LIU) Project at CERN: Ion Injector Chain / Bartosik, Hannes (CERN) ; Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Bellodi, Giulia (CERN) ; Biancacci, Nicolo (CERN) ; Bohl, Thomas (CERN) ; Coupard, Julie (CERN) ; Damerau, Heiko (CERN) ; Funken, Anne (CERN) ; Goddard, Brennan (CERN) et al.
The LHC injector chain for Pb-ion beams at CERN consists of Linac3, the accumulator ring LEIR, the PS and the SPS. In the context of the LHC injectors upgrade (LIU) project an intense program of machine development studies has been performed in the last two years to maximise the intensity of Pb-ion beams at LHC injection. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-TUPVA020 Fulltext: PDF;

Registre complet - Registres semblants
2017-10-17
07:02
Identification and Analysis of Prompt Dose Maxima in the Insertion Regions IR1 and IR5 of the Large Hadron Collider / Stein, Oliver (CERN) ; Brugger, Markus (CERN) ; Danzeca, Salvatore (CERN) ; Garcia Alia, Ruben (CERN) ; Kadi, Yacine (CERN) ; Kastriotou, Maria (CERN) ; Martinella, Corinna (CERN) ; Xu, Chen (CERN)
During the operation of the LHC the continuous particle losses create a radiation field in the LHC tunnel and the adjacent caverns. Exposed electronics and accelerator components show dose dependent accelerated aging effects and stochastic Single Event Effects which can lead to faults and downtime of the LHC. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-TUPVA016 Fulltext: PDF;

Registre complet - Registres semblants
2017-10-17
07:02
HL-LHC Inner Triplet Powering and Control Strategy / Yammine, Samer (CERN) ; Thiesen, Hugues (CERN)
In order to achieve the target 3000 fb-1 integrated field for the HL-LHC (High Luminosity ' Large Hadron Collider) at ATLAS and CMS, new large aperture quadrupoles are required for the final focusing triplet magnets before the interaction points. These low-' magnets, based on the Nb3Sn technology, deliver a peak field of 11.4 T. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-WEPVA116 Fulltext: PDF;

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2017-10-17
07:02
Upgrading of Ageing CERN Underground Infrastructure to Fulfil the Space Requirements of New Facilities at CERN / Martínez Sellés, Alejandro (CERN) ; Carlier, Etienne (CERN) ; Di Murro, Vanessa (Cambridge U. ; CERN) ; Goddard, Brennan (CERN) ; Gschwendtner, Edda (CERN) ; Magnin, Frederic (CERN) ; Morton, Richard (CERN) ; Osborne, John (CERN)
Particle accelerator technology is constantly being developed, and new equipment and machines replace the former ones to keep pushing the energy and intensity frontiers. Therefore, in order to meet the space requirements of new equipment, the infrastructure often needs to be modified, and given its rigid nature, this presents a challenge for the civil engineers to provide the needed space without compromising the safety and serviceability of the structures [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-WEPVA105 Fulltext: PDF;

Registre complet - Registres semblants