2019-10-19
06:02 |
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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 |
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2019-10-19
06:01 |
Updates on alternative pre-booster ring design and wiggler magnet considerations of SPS for the FCC $e^{+}e^{-}$ injector
/ Etisken, Ozgur (Ankara U. ; CERN) ; Antoniou, Fanouria (CERN) ; Çiftçi, Abbas (Izmir U. Economics, Izmir) ; Papaphilippou, Yannis (CERN) ; Tydecks, Tobias (CERN)
The Future Circular $e^{+}e^{−}$ Collider (FCC-$e^{+}e^{−}$) injector complex needs to produce and to transport a high-intensity $e^{+}e^{−}$ beam at a fast repetition rate for topping up the collider at its collision energy. Two different options are under consideration as pre-accelerator before the bunches are transferred to the high-energy booster: using the existing SPS and designing a completely new ring. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPTS097
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPTS097
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2019-10-18
06:27 |
Crystal for slow extraction loss-reduction of the SPS electrostatic septum
/ Esposito, Luigi Salvatore (CERN) ; Addesa, Francesca (INFN, Rome) ; Afonin, Alexander (Serpukhov, IHEP) ; Bestman, 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.
The use of a bent crystal was investigated in order to reduce the losses at the CERN Super Proton Synchrotron (SPS) electrostatic septum (ZS) during the slow extraction of 400 GeV/c protons toward the North Area. The crystal, installed a few meters upstream of the ZS, bends protons that would otherwise impinge on the ZS wires. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP028
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP028
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2019-10-18
06:27 |
Update on beam transfer line design for the SPS Beam Dump Facility
/ Dutheil, Yann (CERN) ; Bauche, Jeremie ; Dougherty, Liam (CERN) ; Fraser, Matthew ; Goddard, Brennan (CERN) ; Heßler, Christoph (CERN) ; Kain, Verena ; Kurdej, Jakub (CERN) ; Uythoven, Jan (CERN) ; Velotti, Francesco (CERN)
The SPS Beam Dump Facility (BDF) being studied as part of the Physics Beyond Colliders (PBC) CERN project has recently reached an important milestone with the completion of the comprehensive feasibility study. The BDF is a proposed fixed target facility to be installed in the SPS North Area, to accommodate experiments such as SHiP (Search for Hidden Particles), which is most notably aiming at studying hidden sector particles. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP027
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP027
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2019-10-18
06:27 |
Emittance dilution from the CERN Proton Synchrotron Booster’s extraction kickers
/ Fraser, Matthew (CERN) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Di Giovanni, Gian Piero (CERN) ; Dutheil, Yann (CERN) ; Forte, Vincenzo (CERN) ; Huschauer, Alexander (CERN) ; Roncarolo, Federico (CERN)
Understanding the different sources of emittance dilution along the LHC injector chain is an important part of providing the high brightness proton beams demanded by the LHC Injectors Upgrade (LIU) project. In this context, the first beam-based measurements of the magnetic waveforms of the Proton Synchrotron Booster’s (PSB) extraction kickers were carried out and used to quantify the transverse emittance blow-up during extraction and transfer to the Proton Synchrotron (PS). [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP026
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP026
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2019-10-18
06:27 |
Matching studies between CERN PSB and PS through multi-turn beam profile acquisitions
/ Fraser, Matthew (CERN) ; Dutheil, Yann (CERN) ; Forte, Vincenzo (CERN) ; Guerrero, Ana (CERN) ; Huschauer, Alexander (CERN) ; Oeftiger, Adrian (CERN) ; Ogur, Salim (CERN) ; Roncarolo, Federico (CERN) ; Senes, Eugenio (CERN) ; Tecker, Frank (CERN)
In the framework of the LHC Injectors Upgrade (LIU) project, the investigation and quantification of the optics mismatch between the CERN Proton Synchrotron Booster (PSB) and PS is a crucial step in understanding the source of horizontal emittance growth between the two machines. Extensive studies were carried out to estimate the mismatch from single-pass measurements in the transfer line and to rematch the transfer line to reduce the dispersive mismatch at PS injection while keeping the betatron matching unaltered. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP025
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP025
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2019-10-18
06:27 |
Alternative material choices to reduce activation of extraction equipment
/ Björkman, Daniel (CERN) ; Balhan, Bruno (CERN) ; Borburgh, Jan (CERN) ; Esposito, Luigi Salvatore (CERN) ; Fraser, Matthew (CERN) ; Goddard, Brennan (CERN) ; Stoel, Linda (CERN) ; Vincke, Helmut (CERN)
At CERN, the Super Proton Synchrotron (SPS) is equipped with a resonant slow extraction system in Long Straight Section 2 (LSS2) towards the fixed target (FT) beam lines in the North Area. The extraction region provides the physics experiments with a quasi-DC flux of high-energy protons over a few seconds, which corresponds to tens of thousands of turns. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP024
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP024
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2019-10-18
06:27 |
First experimental measurements of the caustic nature of trajectories in bunch compressors
/ Charles, Tessa (CERN ; Melbourne U.) ; Björklund Svensson, Jonas (Lund U.) ; Latina, Andrea (CERN) ; Thorin, Sara (Lund U., MAX-lab)
Advancements in the theory describing density perturbations in accelerated charge particle beams, known as caustics, has been gathering interest over the past few years. This proceeding describes the first experimental measurements of the caustic nature of charged particle trajectories in a particle accelerator. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEYYPLS2
Fulltext: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEYYPLS2
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