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CERN Document Server Намерени са 143 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 1.28 секунди. 
1.
LHC MD #12263 - Weak-Strong investigation of Long-Range Beam-beam / Persson, Tobias Hakan Bjorn (CERN) ; Buffat, Xavier (CERN) ; Carlier, Felix Simon (CERN) ; Burkhardt, Felix (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Dilly, Joschua Werner (CERN) ; Hostettler, Michi (CERN) ; Kar, Ujani (University of Applied Sciences (DE)) ; Maclean, Ewen Hamish (CERN) ; Tomas Garcia, Rogelio (CERN)
During the intensity ramp-up in 2024, it was revealed that the collimation hierarchy was broken under normal operational conditions with bunch trains. [...]
CERN-ACC-NOTE-2025-0011. - 2025
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2.
Impactof bunch intensity asymmetry in colliders featuring strong beamstrahlung / Le Nguyen Nguyen, Khoi (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Buffat, Xavier (CERN) ; Kicsiny, Peter ; Pieloni, Tatiana (EPFL - Ecole Polytechnique Federale Lausanne (CH))
An analytical investigation of beamstrahlung induced longitudinal blow-up in Gaussian beams with asymmetric bunch lengths is presented, using approximations for the beam profile. [...]
CERN-ACC-NOTE-2025-0007. - 2025 - 24.
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3.
Long-range beam-beam mitigation for round optics / Fartoukh, Stephane (CERN) ; Kostoglou, Sofia (CERN)
When colliding high intensity bunch trains at low beta*, a sufficiently large crossing angle needs to be imposed at the interaction point (IP) in order to separate the two beams before and after the collision, and mitigate the so-called long-range beam-beam (BBLR) effect, which otherwise can be very detrimental to the beam lifetime. [...]
CERN-ACC-2023-0005. - 2023 - 22.
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4.
Precision luminosity measurement at hadron colliders / Wanczyk, Joanna Malgorzata
This thesis links two realms of particle accelerator dynamics and precision particle physics [...]
2024 - 171.


10.5075/epfl-thesis-10500
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5.
Automated analysis of turn-by-turn beam trajectories following beam dumps at the LHC / Gomez Menendez, Claudia
The Large Hadron Collider (LHC) is a particle accelerator where two counter rotating beams circulate in opposite directions and are brought into collision at different points. [...]
CERN-STUDENTS-Note-2023-065. - 2023
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6.
Optimal LHC optics phasing conditions for long-range beam-beam compensation and flat optics / Fartoukh, Stephane (CERN)
This note describes a new possible phasing configuration for the (HL-)LHC optics, in order to further reduce the minimum allowed distance of beam-beam wire compensators with respect to the beam. [...]
CERN-ACC-NOTE-2022-0012. - 2022. - 17 p.
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7.
Resonance driving terms and tune spread with amplitude driven a beam-beam long range kick and a DC wire kick / Skoufaris, Kyriacos (University of Crete (GR)) ; Sterbini, Guido (CERN) ; Papaphilippou, Yannis (CERN)
This document presents in detail the derivation of the formulas that describe the resonance driving terms and the tune spread with amplitude generated by the beam-beam long range interactions and the DC wire compensators in cyclical machines. [...]
CERN-ACC-NOTE-2020-0064. - 2020. - 21 p.
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8.
MD 3584: Long-Range Beam-Beam 2018 / Karastathis, Nikos ; Fartoukh, Stephane (CERN) ; Kostoglou, Sofia (National Technical Univ. of Athens (GR)) ; Papaphilippou, Yannis (CERN) ; Pojer, Mirko (CERN) ; Poyet, Axel (Universite Grenoble-Alpes (FR)) ; Solfaroli Camillocci, Matteo (CERN) ; Sterbini, Guido (CERN)
A recurrent issue of the LHC operation, observed both during Run1 and Run2 is the asymmetric behaviour of the two beams in terms of particle losses. [...]
CERN-ACC-NOTE-2020-0011. - 2020. - 29 p.
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9.
MD3263: Beam-Beam Long-Range Compensation using DC Wires in the LHC / Poyet, Axel (Universite Grenoble-Alpes (FR)) ; Fartoukh, Stephane (CERN) ; Fuster Martinez, Nuria (CERN) ; Karastathis, Nikos (CERN) ; Papaphilippou, Yannis (CERN) ; Pojer, Mirko (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN) ; Skoufaris, Kyriacos (University of Crete (GR)) ; Solfaroli Camillocci, Matteo (CERN) et al.
This note summarizes the experimental results obtained during the 2018 LHC Machine Development program during the measurements campaign of the Beam-Beam Long-Range compensation using DC wires (MD3263). [...]
CERN-ACC-NOTE-2019-0053. - 2019. - 25 p.
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10.
MD2202: compensating long-range beam-beam effectin the LHC using DC wires / Sterbini, Guido (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) ; Fartoukh, Stephane (CERN) et al.
his note summarizes the program of the LHC Machine Development to assess the potential and limits of the long-range beam-beam compensators held in 2017 (MD2202) [...]
CERN-ACC-NOTE-2019-0052. - 2019. - 52 p.
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