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2019-10-21
13:29
Simulation Tools for Heavy-Ion Tracking and Collimation / Hermes, P.D. (CERN) ; Bruce, R. (CERN) ; Cerutti, F. (CERN) ; Ferrari, A. (CERN) ; Jowett, J.M. (CERN) ; Lechner, A. (CERN) ; Mereghetti, A. (CERN) ; Mirarchi, D. (CERN) ; Ortega, P.G. (CERN) ; Redaelli, S. (CERN) et al.
The LHC collimation system, which protects the LHC hardware from undesired beam loss, is less efficient with heavy-ion beams than with proton beams due to fragmentation into other nuclides inside the LHC collimators. Reliable simulation tools are required to estimate critical losses of particles scattered out of the collimation system which may quench the superconducting LHC magnets. [...]
2018 - 17 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.73 (CERN-2018-011-CP)

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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
11:17
Simulations of collimation losses at RHIC / Robert-Demolaize, G. (Brookhaven National Laboratory (BNL)) ; Drees, A. (Brookhaven National Laboratory (BNL))
State-of-the-art tracking tools were developed at CERN to determine the cleaning efficiency of the Large Hadron Collider (LHC) collimation system. In order to properly assess the accuracy of such simulations, benchmarking studies were required using actual beam loss measurements from a machine featuring a similar multi-stage collimation system. [...]
2018 - 7 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.181 (CERN-2018-011-CP)

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2019-10-21
11:12
First simulations of collimation cleaning performance for the FCC-hh / Fiascaris, M. (CERN) ; Bruce, R. (CERN) ; Redaelli, S. (CERN)
In the context of the Future Circular Collider Study (FCC), the FCC-hh is designed to collide protons at the unprecedented energy of 50 TeV and a total stored energy of 8500 MJ per beam. This puts extremely tight requirements on the collimation system to efficiently intercept unavoidable beam losses. [...]
2018 - 10 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.171 (CERN-2018-011-CP)

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2019-10-21
10:50
HL-LHC Hollow Electron Lens Integration using MERLIN / Rafique, H. (University of Huddersfield ; CERN) ; Appleby, R.B. (University of Manchester ; Cockcroft Institute, Daresbury) ; Barlow, R.J. (University of Huddersfield) ; Molson, J.G. (Orsay, LAL) ; Tygier, S.C. (University of Manchester ; Cockcroft Institute, Daresbury) ; Valloni, A. (CERN ; Cockroft Institute, Daresbury)
The C++ accelerator physics library MERLIN has been developed for LHC collimation. Recently MERLIN has been upgraded to provide a robust tool for HL-LHC collimation, including the treatment of composite materials, and a hollow electron lens process. [...]
2018 - 27 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.135 (CERN-2018-011-CP)

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2019-10-21
10:44
Dynamic simulations in SixTrack / Sjobak, K. (CERN) ; Berglyd Olsen, V.K. (CERN) ; De Maria, R. (CERN) ; Fitterer, M. (CERN) ; García, A. Santamaría (CERN) ; Garcia-Morales, H. (CERN) ; Mereghetti, A. (CERN) ; Wagner, J.F. (CERN) ; Wretborn, S.J. (CERN)
The DYNK module allows element settings in SixTrack to be changed on a turn-by-turn basis. This document contains a technical description of the DYNK module in SixTrack [...]
2018 - 11 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.123 (CERN-2018-011-CP)

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2019-10-21
10:37
Updated implementation of collimator materials in SixTrack and MERLIN codes / Quaranta, E. (CERN ; Politecnico di Milano) ; Valloni, A. (CERN) ; Bruce, R. (CERN) ; Mereghetti, A. (CERN) ; Redaelli, S. (CERN)
The High-Luminosity upgrade of the Large Hadron Collider will push various operational parameters of the machine beyond the design values. The LHC beam collimation system turns out to be one of the bottlenecks for the achievement of the future challenging beam parameters. [...]
2018 - 10 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.109 (CERN-2018-011-CP)

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2019-10-21
10:33
Crystal implementation in SixTrack for proton beams / Mirarchi, D. (CERN) ; Redaelli, S. (CERN) ; Scandale, W. (CERN)
Crystal channeling is a property of crystals resulting from the extreme order in which the atoms are arranged: the crystalline lattice. Positive charged particles can get trapped between crystalline planes, and bending highly pure crystals allows deflecting high energy beams. [...]
2018 - 18 p. Fulltext: PDF;
In : ICFA Mini-Workshop on Tracking for Collimation in Particle Accelerators, CERN, Geneva, Switzerland, 30 Oct 2015, pp.91 (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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