CERN Accelerating science

SPS and CNGS

Ultimi arrivi:
2019-10-16
07:36
LHC optics measurement and correction software progress and plans / Tomás, Rogelio (CERN) ; Cardona, Javier (Colombia, U. Natl.) ; Carlier, Felix (CERN) ; Coello, Jaime (CERN) ; Dilly, Joschua (CERN) ; Fol, Elena (CERN) ; Garcia-Tabares, Ana (CERN) ; Hofer, Michael (CERN) ; Maclean, Ewen (CERN) ; Malina, Lukas (CERN) et al.
LHC Optics Measurements and Corrections (OMC) require efficient on-line software applications to acquire and analyze data and to compute the necessary corrections. During Run 2 various measurement and correction techniques have been merged to yield unprecedented optics quality, increasing the required number of steps to finalize the optics commissioning and the size of the software project. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPGW116 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW116

Record dettagliato - Record simili
2019-10-16
07:36
Commissioning of the prototype for a new gas curtain beam profile monitor using beam induced fluorescence for HL-LHC / Salehilashkajani, Amir (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, Marton (CERN) ; Chritin, Nicolas (CERN) ; Forck, Peter (Darmstadt, GSI) ; Glutting, Johanna (CERN) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) et al.
A new supersonic gas-jet curtain based beam profile monitor is under development for minimally invasive simultaneous transverse profile diagnostics of proton and electron beams, at pressures compatible with LHC. The monitor makes use of a thin gas-jet curtain angled at 45° with respect to the charged particle beams. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPGW093 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW093

Record dettagliato - Record simili
2019-10-16
07:36
Calibration of the AWAKE electron spectrometer with electrons derived from a partially stripped ion beam / Cooke, David (University Coll. London) ; Alemany-Fernández, Reyes (CERN) ; Bauche, Jeremie (CERN) ; Cascella, Michele (University Coll. London) ; Chappell, James (University Coll. London) ; Gorgisyan, Ishkhan (CERN) ; Gschwendtner, Edda (CERN) ; Jolly, Simon (University Coll. London) ; Kain, Verena (CERN) ; Keeble, Fearghus (University Coll. London) et al.
The electron spectrometer for the Advanced Wakefield (AWAKE) experiment at CERN has been tested using an electron beam derived from partially-stripped ions accelerated in the Super Proton Synchrotron (SPS). The remaining electrons are stripped by passage of the beam through a thin screen upstream from the spectrometer, and using knowledge of the ion beam charge and energy, models of the spectrometer response could be verified..
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-WEPGW089 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW089

Record dettagliato - Record simili
2019-10-16
07:36
Characterisation of electro-optic pickups for high bandwidth diagnostics at the High Luminosity LHC / Arteche, Alberto (JAI, UK ; Royal Holloway, U. of London) ; Bashforth, Sophie (JAI, UK ; Royal Holloway, U. of London) ; Bosco, Alessio (JAI, UK ; Royal Holloway, U. of London) ; Gibson, Stephen (JAI, UK ; Royal Holloway, U. of London) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Penman, Inada (JAI, UK ; Royal Holloway, U. of London)
A high bandwidth electro-optical beam position monitor is under development for the High Luminosity LHC. A series of measurements of the electro-optic signals were previously obtained by an EO-BPM prototype installed in the SPS. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPGW088 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW088

Record dettagliato - Record simili
2019-10-16
07:35
Damping bunch oscillations due to off-axis injection / Zimmermann, Frank (CERN) ; Etisken, Ozgur (CERN) ; Mounet, Nicolas (CERN) ; Oeftiger, Adrian (CERN) ; Ogur, Salim (CERN) ; Oide, Katsunobu (CERN) ; Papaphilippou, Yannis (CERN) ; Salvant, Benoit (CERN)
In the FCC-ee pre-injector complex, a slightly modified SPS can serve as pre-booster. The baseline design foresees injecting the low-emittance electron and positron bunches off-axis into the SPS, and deploying strong wigglers to greatly enhance the radiation damping at the injection energy. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPMP041 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP041

Record dettagliato - Record simili
2019-10-16
07:35
Systematic optics studies for the commissioning of the AWAKE electron beamline / Bracco, Chiara (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Goddard, Brennan (CERN) ; Gorgisyan, Ishkhan (CERN) ; Turner, Marlene (CERN) ; Velotti, Francesco (CERN) ; Verra, Livio (CERN)
The commissioning of the AWAKE electron beam line was successfully completed in 2018. Despite a modest length of about 15 m, this low-energy line is quite complex and several iterations were needed before finding satisfactory agreement between the model and the measurements. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPMP029 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP029

Record dettagliato - Record simili
2019-10-15
06:34
Flat-bottom instabilities in the CERN SPS / Schwarz, Markus (CERN) ; Iliakis, Konstantinos (CERN) ; Lasheen, Alexandre (CERN) ; Papotti, Giulia (CERN) ; Repond, Joël (CERN) ; Shaposhnikova, Elena (CERN) ; Timko, Helga (CERN)
At intensities of $2.6 \times 10^{11}$ protons per bunch (ppb), required at SPS injection for the High Luminosity LHC beam, longitudinal instabilities can degrade the beam quality delivered by the SPS, the LHC injector at CERN. In this paper, we concentrate on beam instability at flat bottom. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS049 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS049

Record dettagliato - Record simili
2019-10-12
06:01
Demonstration of loss reduction using a thin bent crystal to shadow an electrostatic septum during resonant slow extraction / Velotti, Francesco (CERN) ; Addesa, Francesca (INFN, Rome) ; Afonin, Alexander (Serpukhov, IHEP) ; Bestmann, Patrick (CERN) ; Borg, Johan (Imperial Coll., London) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Chesnokov, Yuri (Serpukhov, IHEP) ; Denisov, Alexander (St. Petersburg, INP) ; Di Castro, Mario (CERN) et al.
A proof-of-principle experiment demonstrating the feasibility of using a thin, bent crystal aligned upstream of an extraction septum (ES) to increase the efficiency of the third-integer resonant slow extraction process has been carried out at the CERN Super Proton Synchrotron (SPS). With the primary aim of reducing the beam loss and induced radio-activation of the SPS, the crystal was aligned to both the beam and the septum to reduce by up to 40% the beam intensity impinging the ES and increase the intensity entering the external transfer line. [...]
2019 - 5 p. - Published in : 10.18429/JACoW-IPAC2019-THXXPLM2 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THXXPLM2

Record dettagliato - Record simili
2019-10-12
06:01
SixTrack Version 5: Status and new developments / De Maria, Riccardo (CERN) ; Andersson, Joel (CERN) ; Dalena, Barbara (IRFU, Saclay) ; Field, Laurence (CERN) ; Giovannozzi, Massimo (CERN) ; Hermes, Pascal (CERN) ; Hoimyr, Nils (CERN) ; Iadarola, Giovanni (CERN) ; Kostoglou, Sofia (CERN) ; Maclean, Ewen (CERN ; U. Malta) et al.
SixTrack Version 5 is a major SixTrack release that introduces new features, with improved integration of the existing ones, and extensive code restructuring. New features include dynamic-memory management, scattering-routine integration, a new initial-condition module, and reviewed post-processing methods. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS043 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS043

Record dettagliato - Record simili
2019-10-12
06:01
Momentum slip-stacking in CERN SPS for the ion beams / Argyropoulos, Theodoros (CERN) ; Bohl, Thomas (CERN) ; Lasheen, Alexandre (CERN) ; Papotti, Giulia (CERN) ; Quartullo, Danilo (CERN) ; Shaposhnikova, Elena (CERN)
The LHC Injectors Upgrade (LIU) project at CERN aims at doubling the total intensity of the lead ion beam for the High-Luminosity (HL) LHC. Achieving this goal requires using momentum slip-stacking in the SPS, the LHC injector. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS039 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS039

Record dettagliato - Record simili