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SPS and CNGS

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2019-10-21
12:57
FLUKA-SIXTRACK Coupling for the SPS Scrapers / Appleby, R.B. (UniMAN) ; Cerutti, F. (CERN) ; Mereghetti, A. (CERN)
Recently, the FLUKA–SIXTRACK coupling has been set up to simulate with great detail the performance of cleaning systems in circular, ultra-relativistic accelerators. In a coupled simulation, the two codes run simultaneously while exchanging particle information; SIXTRACK tracks the beam through the accelerator lattice, whereas FLUKA simulates the interaction of the tracked beam with intercepting devices. [...]
2018 - 13 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.205 (CERN-2018-011-CP)

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2019-10-21
12:39
Simulation and optimization of beam losses during continuous transfer extraction at the CERN Proton Synchrotron / Barranco García, J. (CERN) ; Gilardoni, S. (CERN)
The proton beams used for the fixed target physics at the Super Proton Synchrotron (SPS) are extracted from the Proton Synchrotron (PS) by a multiturn technique called continuous transfer (CT). During the CT extraction, large losses are observed in locations where the machine aperture should be large enough to accommodate the circulating beam. [...]
2018 - 10 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.189 (CERN-2018-011-CP)

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2019-10-21
10:06
MARS15-Based System for Beam Loss and Collimation Studies / Mokhov, N.V. (FERMILAB) ; Tropin, I.S. (FERMILAB)
The system includes the newest version of the MARS15 code for particle production and transport in accelerator components integrated with a novel highprecision tracker/stepper for multi-turn tracking merged with MAD-X. The overall approach is described with all the essential features and programming issues highlighted. [...]
2018 - 16 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.57 (CERN-2018-011-CP)

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2019-10-21
09:28
SixTrack Status / De Maria, R. (CERN) ; Mereghetti, A. (CERN) ; Molson, J. (CERN) ; Sjobak, K. (CERN)
SixTrack is a 6D symplectic tracking code used to simulate single-particle dynamics in high-energy circular accelerators and storage rings. It is routinely used for the design and optimization of the LHC since its conception, and more recently for SPS, RHIC, HL-LHC, and FCC studies. [...]
2018 - 5 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.11 (CERN-2018-011-CP)

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2019-10-19
06:02
Data-driven controller design using the CERN Power Converter Control Libraries (CCLIBS) / Nicoletti, Achille (CERN) ; Martino, Michele (CERN)
The data-driven control approach is a control methodology in which a controller is designed without the need of a model. Parametric uncertainties and the associated unmodeled dynamics are therefore irrelevant; the only source of uncertainty comes from the measurement process. [...]
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-TUPMP039 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.TUPMP039

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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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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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