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All PS Complex

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2019-11-13
09:45
Optics-measurement-based Beam Position Monitor Calibration. / Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES))
Accurate measurements of the focusing properties of an accelerator are essential for proper operation of a synchrotron, both for the machine protection and for the performance of the experiment. Measurement of linear optics functions based on turn-by-turn measurements has been developed continuously in pursuit of more accurate results. [...]
CERN-THESIS-2019-211.- 153 p. Fulltext: PDF; External link: Approve this document (restricted)

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2019-10-31
09:54
Advancing the CERN proton synchrotron multiturn extraction towards the high-intensity proton beams frontier / Huschauer, A (CERN) ; Bartosik, H (CERN) ; Cettour Cave, S (CERN) ; Coly, M (CERN) ; Cotte, D (CERN) ; Damerau, H (CERN) ; Di Giovanni, G P (CERN) ; Gilardoni, S (CERN) ; Giovannozzi, M (CERN) ; Kain, V (CERN) et al.
Complementary to the physics research at the LHC, several fixed-target facilities receive beams from the LHC injector complex. To serve the fixed-target physics programme at the super proton synchrotron, high-intensity proton beams from the proton synchrotron are extracted using the multiturn extraction technique based on trapping parts of the beam in stable resonance islands. [...]
2019 - 13 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 104002 Fulltext: PDF;

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2019-10-25
09:43
Optics measurements in the CERN PS Booster using turn-by-turn BPM data / Garcia-Tabares Valdivieso, Ana (UCM, Somosaguas) ; Skowroński, Piotr (CERN) ; Tomás García, Rogelio (CERN)
As part of the LHC Injector Upgrade Project the injection of the CERN PS Booster will be changed to increase intensity and brightness of the delivered beams. The new injection scheme is likely to give rise to beta beating above the required level of 5% and new measurements are required. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPGW080 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPGW080

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2019-10-22
06:18
Transverse emittance studies at extraction of the CERN PS Booster / Antoniou, Fanouria (CERN) ; Albright, Simon (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Di Giovanni, Gian Piero (CERN) ; Forte, Vincenzo (CERN) ; Fraser, Matthew (CERN) ; Valdivieso, Ana (CERN) ; Huschauer, Alexander (CERN) ; Mikulec, Bettina (CERN) et al.
Transverse emittance discrepancy in the beam transfer between the Proton Synchrotron Booster (PSB) and the Proton Synchrotron (PS) is observed in operational conditions for the LHC beams at CERN. The ongoing LHC Injectors Upgrade (LIU) project requires a tight budget for beam degradation along the injector chain and therefore the reason for this emittance discrepancy needs to be understood. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS087 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS087

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2019-10-22
06:18
Identification and compensation of betatronic resonances in the Proton Synchrotron Booster at 160 MeV / Santamaría García, Andrea (CERN) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN ; Natl. Tech. U., Athens) ; Bartosik, Hannes (CERN) ; Di Giovanni, Gian Piero (CERN) ; Mikulec, Bettina (CERN) ; Rafique, Haroon (CERN)
The Proton Synchrotron Booster (PSB) is the first circular accelerator in the injector chain to the Large Hadron Collider (LHC) and accelerates protons from 50 MeV to 1.4 GeV. The PSB will need to deliver two times the current brightness after the LHC Injectors Upgrade (LIU) in order to meet the High Luminosity LHC (HL-LHC) beam requirements. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS086 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS086

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2019-10-22
06:18
Commissioning of a new digital transverse damper system at the PSB / Di Giovanni, Gian Piero (CERN) ; Antoniou, Fanouria (CERN) ; Blas, Alfred (CERN) ; Brischetto, Ylenia (CERN) ; Findlay, Alan (CERN) ; Kotzian, Gerd (CERN) ; Mikulec, Bettina (CERN) ; Sterbini, Guido (CERN)
At the CERN Proton Synchrotron Booster, PSB, an analog transverse damper system has been in operation since 1999, providing satisfactory operational results with the proton beam supplied by Linac2. As a consequence of the LHC Injectors Upgrade, the PSB will face new challenges imposed by higher intensity, injection and extraction energy. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS085 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS085

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2019-10-19
06:02
Study of the transverse emittance blow-up along the Proton Synchrotron Booster cycle during wire scanner operation / Santamaría García, Andrea (CERN) ; Antoniou, Fanouria (CERN) ; Bartosik, Hannes (CERN) ; Briz Monago, Jose (CERN) ; Di Giovanni, Gian Piero (CERN) ; Guerrero Ollacarizqueta, Ana (CERN) ; Hunt, James (CERN) ; Mikulec, Bettina (CERN) ; Roncarolo, Federico (CERN) ; Senes, Eugenio (CERN) et al.
Transverse emittance measurements with wire scanners have been extensively studied across the accelerator complex at CERN due to their important role in characterizing the beams and their complicated modelling. In recent years, this topic has been of particular interest for the LHC Injectors Upgrade (LIU) project, where a tight transverse emittance blow-up budget between the Proton Synchrotron Booster (PSB) and the Proton Synchrotron (PS) is imposed to ensure the required beam brightness for the High Luminosity LHC (HL-LHC). [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS101 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS101

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2019-10-19
06:02
Transverse emittance measurement in the CERN Proton Synchrotron in view of beam production for the High-Luminosity LHC / Senes, Eugenio (CERN ; JAI, UK ; U. Oxford (main)) ; Emery, Jonathan (CERN) ; Forte, Vincenzo (CERN) ; Fraser, Matthew (CERN) ; Guerrero Ollacarizqueta, Ana (CERN) ; Huschauer, Alexander (CERN) ; Roncarolo, Federico (CERN) ; Sirvent, Jose (CERN ; Barcelona U.) ; Skowroński, Piotr (CERN) ; Tecker, Frank (CERN)
In the framework of the LHC Injectors Upgrade project the improvements required to achieve the parameters of the future beams for the High-Luminosity LHC are being studied and implemented. In order to deliver high brightness beams, control over the beam intensity and emittance is fundamental. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS100 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS100

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2019-10-19
06:01
Beam manipulations with barrier buckets in the CERN PS / Vadai, Mihaly (Queen Mary, U. of London (main) ; CERN) ; Alomainy, Akram (Queen Mary, U. of London (main)) ; Damerau, Heiko (CERN) ; Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Huschauer, Alexander (CERN)
A barrier bucket scheme is being considered to reduce losses during the Multi-Turn Extraction from the CERN Proton Synchrotron to the Super Proton Synchrotron for the fixed-target physics programme. For effective loss reduction, the extraction kicker has to be triggered during the gap at the time of the longitudinal barrier. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS107 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS107

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2019-10-19
06:01
Barrier bucket studies in the CERN PS / Vadai, Mihaly (Queen Mary, U. of London (main) ; CERN) ; Alomainy, Akram (Queen Mary, U. of London (main)) ; Damerau, Heiko (CERN)
Part of the residual beam loss during the Multi-Turn Extraction (MTE) of fixed target beams from the CERN Proton Synchrotron (PS) can be attributed to kicker magnets switching while the beam is coasting with the main radio frequency (RF) systems off before extraction. Generating a barrier bucket to deplete the longitudinal line density of the coasting beam during the kicker rise time can reduce these losses. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPTS106 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS106

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