CERN Accelerating science

All CERN Accelerators documents

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2019-11-12
16:55
Measurement and Simulation of the Longitudinal Impedance of the LHCb VELO / Popovic, Branko Kosta (CERN) ; Vollinger, Christine (CERN)
Impedance analysis of any new or redesigned components of the LHC machine is vital in ensuring beam stability and for inclusion in the overall impedance budget. [...]
CERN-ACC-NOTE-2019-0048.
- 2019. - 8 p.

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2019-11-11
15:34
Category Accelerators and storage rings - CERN-OBJ-AC-067.
Focusing Horn

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2019-11-08
04:03
Impedance reduction of the High-frequency Cavities in the CERN PS by Multi-harmonic Feedback / Bertin, Florian (CERN) ; Brischetto, Ylenia (CERN) ; Damerau, Heiko (CERN) ; Jibar, Azeddine (CERN) ; Perrelet, Damien (CERN)
In the framework of the "LHC Injectors Upgrade" (LIU) project, the CERN Proton Synchrotron (PS) is being prepared as a pre-injector for the Large Hadron Collider at high luminosity (HL-LHC). [...]
arXiv:1910.06874 ; LLRF2019/180.
- 4 p.
Fulltext

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2019-11-08
04:03
Achievements and New Challenges for CERN's Digital LLRF Family / Angoletta, M.E. (CERN) ; Albright, S. (CERN) ; Findlay, A. (CERN) ; Myklebust, V.R. (CERN) ; Jaussi, M. (CERN) ; Molendijk, J.C. (CERN) ; Pittet, N. (CERN)
An innovative digital Low-Level RF (LLRF) family has been developed at CERN and deployed on several circular machines. [...]
arXiv:1910.06643.
- 5 p.
Fulltext

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2019-11-07
04:38
Compensated Phase Jump at Transition Crossing in the CERN PS / Damerau, Heiko (CERN)
The transition energy must be crossed in the CERN PS to accelerate proton and ion beams to flat-top energy. [...]
arXiv:1910.06361 ; LLRF2019/181.
- 5 p.
Fulltext

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2019-11-01
06:03
SixTrack project: Status, runtime environment, and new developments / De Maria, Riccardo (CERN) ; Andersson, Joel (CERN) ; Field, Laurence (CERN) ; Giovannozzi, Massimo (CERN) ; Hermes, Pascal (CERN) ; Hoimyr, Nils (CERN) ; Iadarola, Giovanni (CERN) ; Kostoglou, Sofia (CERN) ; Maclean, Ewen (CERN ; U. Malta) ; McIntosh, Eric (CERN) et al.
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN for the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), the Future Circular Collider (FCC), and the Super Proton Synchrotron (SPS) simulations. The code is based on a 6D symplectic tracking engine, which is optimised for long-term tracking simulations and delivers fully reproducible results on several platforms. [...]
2019 - 7 p. - Published in : 10.18429/JACoW-ICAP2018-TUPAF02 Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.TUPAF02

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2019-11-01
06:03
Upgrade of MAD-X for HL-LHC project and FCC studies / Deniau, Laurent (CERN) ; Burkhardt, Helmut (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Gläßle, Thomas (Heidelberg U. Hospital) ; Jowett, John (CERN) ; Latina, Andrea (CERN) ; Persson, Tobias (CERN) ; Schmidt, Frank (CERN) ; Shreyber, Irina (CERN) et al.
The design efforts for the High Luminosity upgrade project of the Large Hadron Collider (HL-LHC) and for the FCC-ee studies required significant extensions of the MAD-X code, widely used for designing and simulating particle accelerators. The modelling of synchrotron radiation effects has recently been reviewed, improved, and tested on the lattices of ESRF, LEP, and CLIC Final Focus System [...]
2019 - 7 p. - Published in : 10.18429/JACoW-ICAP2018-TUPAF01 Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.TUPAF01

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2019-11-01
06:03
Muon background studies for beam dump operation of the K12 beam line at CERN / Rosenthal, Marcel (CERN) ; Banerjee, Dipanwita (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; Döbrich, Babette (CERN) ; Gatignon, Laurent (CERN) ; Gerbershagen, Alexander (CERN) ; Montbarbon, Eva (CERN) ; Rae, Bastien (CERN) et al.
In the scope of the Physics Beyond Colliders study at CERN a future operation of the NA62 experiment in beam dump mode is discussed, enabling the search for dark sector particles, e.g. heavy neutral leptons, dark photons and axions. [...]
2019 - 6 p. - Published in : 10.18429/JACoW-ICAP2018-SUPAG05 Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.SUPAG05

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2019-11-01
06:03
Space charge and transverse instabilities at the CERN SPS and LHC / Métral, Elias (CERN) ; Amorim, David (CERN) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Benedetto, Elena (CERN) ; Burkhardt, Helmut (CERN) ; Li, Kevin (CERN) ; Oeftiger, Adrian (CERN) ; Quatraro, Diego (CERN) ; Rumolo, Giovanni (CERN) et al.
At the CERN accelerator complex, it seems that only the highest energy machine in the sequence, the LHC, with space charge (SC) parameter close to one, sees the predicted beneficial effect of SC on transverse coherent instabilities. In the other circular machines of the LHC injector chain (PSB, PS and SPS), where the SC parameter is much bigger than one, SC does not seem to play a major (stabilising) role, and it is maybe the opposite in the SPS. [...]
2019 - 7 p. - Published in : 10.18429/JACoW-ICAP2018-SUPAG01 Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.SUPAG01

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2019-11-01
06:03
HOM-mitigation for future SPS 33-cell 200 MHz accelerating structures / Kramer, Patrick (CERN ; RWTH Aachen U.) ; Vollinger, Christine (CERN)
The CERN SPS 200 MHz travelling wave (TW) accelerating structures pose an intensity limitation for the planned High Luminosity (HL-) LHC upgrade. Higher-order modes (HOMs) around 630 MHz have been identified as one of the main sources of longitudinal multi-bunch instabilities. [...]
2019 - 7 p. - Published in : 10.18429/JACoW-ICAP2018-SAPAG04 Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.SAPAG04

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