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Two beam effects
/ Pieloni, T (CERN) ; Barranco, J (EPFL, Lausanne, FSL) ; Buffat, X (EPFL, Lausanne, FSL) ; White, S M (Brookhaven Natl. Lab.) ; Qiang, J (LBNL, Berkeley) ; Arduini, G (CERN) ; Metral, E (CERN) ; Mounet, N (CERN) ; Banfi, D (EPFL, Lausanne, FSL)
In this talk we propose possible scenarios for operation of beams during the
betatron squeeze, adjust and stable beam mode at 6.5 TeV energy for the 2015 LHC
physics run. The available parameter space in term of intensity, emittances,
chromaticity, octupole current, damper gain will be explored for the 25 ns bunch
spacing. [...]
Geneva : CERN, 2014 - 12 p.
- Published in : (2014) , pp. 69-80
Fulltext: PDF;
In : 5th Evian Workshop on LHC beam operation, Evian-les-Bains, France, 2 - 4 Jun 2014, pp.69-80
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Beam-beam effects long-range and head-on
/ Pieloni, T (CERN) ; Banfi, D (Ecole Polytechnique, Lausanne) ; Barranco, J (Ecole Polytechnique, Lausanne) ; Crouch, M (Manchester U.) ; Buffat, X (CERN) ; Tambasco, C (CERN) ; Metral, E (CERN) ; Salvachua, B (CERN) ; Pojer, M (CERN) ; Giachino, R (CERN) et al.
The 2015 LHC run has shown the beauty of having weaker beam-beam effects with
respect to 2012 physics run. The 2015 setup has been defined to allow Landau
octupole and chromaticity to be powered at maximum currents to fight coherent
instabilities. [...]
Geneva : CERN, 2016 - 12 p.
- Published in : (2016) , pp. 111-122
Fulltext: PDF;
In : 6th Evian Workshop on LHC beam operation, Evian Les Bains, France, 15 - 17 Dec 2015, pp.111-122
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Beam Instabilities in Hadron Synchrotrons
/ Métral, E (CERN) ; Argyropoulos, T (CERN) ; Bartosik, H (CERN) ; Biancacci, N (CERN) ; Buffat, X (CERN) ; Esteban Muller, J F (CERN) ; Herr, W (CERN) ; Iadarola, G (CERN) ; Lasheen, A (CERN) ; Li, K (CERN) et al.
Beam instabilities cover a wide range of effects in particle accelerators and they have been the subjects of intense research for several decades. As the machines performance was pushed new mechanisms were revealed and nowadays the challenge consists in studying the interplays between all these intricate phenomena, as it is very often not possible to treat the different effects separately. [...]
FERMILAB-PUB-15-646-APC.-
2016 - 50 p.
- Published in : IEEE Trans. Nucl. Sci. 63 (2016) 1001-1050
Fulltext: PDF;
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Impact of Long Range Beam-Beam Effects on Intensity and Luminosity Lifetimes from the 2015 LHC Run
/ Crouch, Matthew (U. Manchester (main)) ; Appleby, Robert (U. Manchester (main)) ; Banfi, Danilo (EPFL-ISIC, Lausanne) ; Barranco, Javier (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Muratori, Bruno (Daresbury) ; Pojer, Mirko (CERN) ; Salvachua, Belen (CERN) ; Tambasco, Claudia (EPFL-ISIC, Lausanne) et al.
Luminosity is one of the key parameters that determines the performance of colliding beams in the Large Hadron Collider (LHC). Luminosity can therefore be used to quantify the impact of beam-beam interactions on the beam lifetimes and emittances. [...]
CERN-ACC-2016-263.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMW007
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMW007
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The High Luminosity Challenge: Potential and Limitations of High-Intensity High-Brightness Beams in the LHC and its Injectors
/ De Maria, Riccardo (CERN) ; Arduini, Gianluigi (CERN) ; Banfi, Danilo (CERN) ; Barranco, Javier (CERN) ; Bartosik, Hannes (CERN) ; Benedetto, Elena (CERN) ; Bruce, Roderik (CERN) ; Brüning, Oliver (CERN) ; Calaga, Rama (CERN) ; Cerutti, Francesco (CERN) et al.
High-intensity and high-brightness beams are key ingredients to maximize the integrated luminosity of the LHC and exploit its full potential. This contribution will describe the optimization of the beam and machine parameters to maximize the integrated luminosity for the LHC experiments, by taking into account the expected intensity and brightness reach of the LHC and its injector chain and the capabilities of the detectors for the next run and foreseen upgrade scenarios..
2015 - 5 p.
- Published in : (2015) , pp. MOXLR01
Fulltext: PDF; External link: JACOW
In : 54th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, East-Lansing, USA, 10 - 14 Nov 2014, pp.MOXLR01
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Long range beam-beam interaction and the effect on the beam and luminosity lifetimes
/ Crouch, Matthew (University of Manchester, Manchester, U.K / The Cockcroft) ; Pieloni, Tatiana (CERN) ; Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH)) ; Banfi, Danilo ; Buffat, Xavier (CERN) ; Tambasco, Claudia (Ecole Polytechnique Federale de Lausanne (CH)) ; Alexahin, Yuri ; Bruce, Roderik (CERN) ; Giachino, Rossano (CERN) ; Pojer, Mirko (CERN) et al.
Identifying the minimum crossing angle achievable in the LHC is a key parameter to identify the collider luminosity reach [...]
CERN-ACC-NOTE-2016-0019.
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2016. - 12 p.
Full text
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Chapter 2: Machine Layout and Performance
/ Angal-Kalinin, D. (Daresbury) ; Appleby, R (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Arduini, G (CERN) ; Banfi, D (Ecole Polytechnique, Lausanne) ; Barranco, J (Ecole Polytechnique, Lausanne) ; Biancacci, N (CERN) ; Brett, D (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Bruce, R (CERN) ; Brüning, O (CERN) ; Buffat, X (CERN) et al.
Chapter 2 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. [...]
arXiv:1705.09447; FERMILAB-PUB-15-723-AD.-
2015 - 40 p.
- Published in : 10.5170/CERN-2015-005.21
Fulltext: 5efc3522b3eeca4c90a194be7f0be5d4 - PDF; arXiv:1705.09447 - PDF; Published version from CERN: PDF; External link: Fermilab Library Server
In : High-Luminosity Large Hadron Collider (HL-LHC), pp.21-60
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HL-LHC Alternative Scenarios
/ Tomás, R (CERN) ; Arduini, G (CERN) ; Banfi, D (CERN) ; Barranco, J (CERN) ; Bartosik, H (CERN) ; Brüning, O (CERN) ; Calaga, R (CERN) ; Dominguez, O (CERN) ; Damerau, H (CERN) ; Fartoukh, S (CERN) et al.
Geneva : CERN, 2015
Published version from CERN: PDF;
In : Chamonix 2014: LHC Performance Workshop, pp.217-224
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