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CERN Document Server Sök i 2,047 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 7.76 sekunder. 
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Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators / Hermes, Pascal Dominik (CERN ; U. Munster) ; Bruce, Roderik (CERN) ; Jowett, John (CERN) ; Redaelli, Stefano (CERN)
The betatron collimators in IR7 constitute the backbone of the collimation system of the LHC. A fraction of the secondary halo protons or heavy-ion fragments, scattered out of the primary collimator, is not captured by the secondary collimators but hits cold magnets in the IR7 dispersion suppressor (DS) where the dispersion starts to increase. [...]
CERN-ACC-2015-0193.- Geneva : CERN, 2015 - 3 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY025
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LHC Heavy-Ion Collimation Quench Test at 6.37Z TeV / Hermes, Pascal Dominik (Westfaelische Wilhelms-Universitaet Muenster (DE)) ; Auchmann, Bernhard (CERN) ; Bruce, Roderik (CERN) ; Hofle, Wolfgang (CERN) ; Holzer, Eva Barbara (CERN) ; Kalliokoski, Matti (Helsinki Institute of Physics (FI)) ; Kotzian, Gerd (CERN) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Quaranta, Elena (Politecnico di Milano (IT)) et al.
This note summarizes the collimation quench test MD with 208Pb82+ beams at 6.37Z TeV in which a quench of a dipole magnet in the dispersion suppressor (DS) downstream of the betatron collimation region (IR7) was achieved. [...]
CERN-ACC-NOTE-2016-0031. - 2016. - 10 p.
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Collimation with tighter TCTs at β*=40 cm / Bruce, Roderik (CERN) ; Hermes, Pascal Dominik (Westfaelische Wilhelms-Universitaet Muenster (DE)) ; Kwee-Hinzmann, Regina (University of London (GB)) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Quaranta, Elena (Politecnico di Milano (IT)) ; Redaelli, Stefano (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Valentino, Gianluca (University of Malta (MT)) ; Valloni, Alessandra (University of Manchester (GB)) et al.
MD 310 was carried out on August 28 2015, in order to investigate the collimation performance using nominal optics with β* =40 cm, 2 σ retraction collimator settings in IR7, and the very tight TCT settings which are necessary to protect the small normalized aperture. [...]
CERN-ACC-NOTE-2015-0036. - 2015. - 22 p.
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Collimation quench test with 6.5 TeV proton beams / Salvachua Ferrando, Belen Maria (CERN) ; Auchmann, Bernhard (CERN) ; Bruce, Roderik (CERN) ; Hermes, Pascal Dominik (Westfaelische Wilhelms-Universitaet Muenster (DE)) ; Holzer, Eva Barbara (CERN) ; Jacquet, Delphine (CERN) ; Kalliokoski, Matti (Helsinki Institute of Physics (FI)) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) et al.
We show here the analysis of the MD test that aimed to quench the superconducting magnets in the dispersion suppressor region downstream of the main betatron collimation system. [...]
CERN-ACC-NOTE-2016-0015. - 2016. - 13 p.
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IR aperture measurement at β*=40 cm / Bruce, Roderik (CERN) ; Garcia Morales, Hector (University of London (GB)) ; Hermes, Pascal Dominik (Westfaelische Wilhelms-Universitaet Muenster (DE)) ; Kwee-Hinzmann, Regina (University of London (GB)) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Skowronski, Piotr Krzysztof (CERN) ; Valentino, Gianluca (University of Malta (MT)) et al.
This note summarizes MD 307, performed on August 27 2015, during which we measured with beam the global apertures at 6.5 TeV with IR1 and IR5 squeezed to β* =40 cm and a half crossing angle of 205 rad. [...]
CERN-ACC-NOTE-2015-0037. - 2015. - 13 p.
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Detailed IR aperture measurements / Bruce, Roderik (CERN) ; De Maria, Riccardo (CERN) ; Garcia Morales, Hector (University of London (GB)) ; Giovannozzi, Massimo (CERN) ; Hermes, Pascal Dominik (CERN) ; Mirarchi, Daniele (CERN) ; Quaranta, Elena (Politecnico di Milano (IT)) ; Redaelli, Stefano (CERN) ; Rossi, Carlo (CERN) ; Skowronski, Piotr Krzysztof (CERN) et al.
MD 1673 was carried out on October 5 2016, in order to investigate in more detail the available aperture in the LHC high-luminosity insertions at 6.5 TeV and β∗=40 cm. [...]
CERN-ACC-NOTE-2016-0075. - 2016. - 11 p.
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MD 7224: LHC collimation quench test with protons / Hermes, Pascal Dominik (CERN) ; Abramov, Andrey (CERN) ; Bruce, Roderik (CERN) ; Calzolari, Daniele (Universita e INFN, Padova (IT)) ; D'Andrea, Marco (CERN) ; Giovannozzi, Massimo (CERN) ; Hernalsteens, Cedric (CERN) ; Lechner, Anton (CERN) ; Lindstrom, Bjorn Hans Filip (CERN) ; Mirarchi, Daniele (CERN) et al.
This note describes a collimation quench test performed at the CERN Large Hadron Collider. [...]
CERN-ACC-NOTE-2023-0024. - 2023.
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Heavy-Ion Collimation at the Large Hadron Collider : Simulations and Measurements / Hermes, Pascal Dominik
The CERN Large Hadron Collider (LHC) stores and collides proton and $^{208}$Pb$^{82+}$ beams of unprecedented energy and intensity [...]
CERN-THESIS-2016-230 - 269 p.

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HL-LHC Run 4 proton operational scenario / Tomas Garcia, Rogelio (CERN) ; Arduini, Gianluigi (CERN) ; Baudrenghien, Philippe (CERN) ; Bruning, Oliver (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Calaga, Rama (CERN) ; De Maria, Riccardo (CERN) ; Dilly, Joschua Werner (Humboldt University of Berlin (DE)) ; Efthymiopoulos, Ilias (CERN) et al.
Following new findings in beam dynamics and the latest HL-LHC project decisions, an operational scenario has been developed for the first HL-LHC run, Run 4. [...]
CERN-ACC-2022-0001. - 2022. - 37 p.
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Different approaches for minimising proton beam losses on the 11 T dipole in the IR7 dispersion suppressor / Belli, Eleonora ; Bruce, Roderik (CERN) ; Giovannozzi, Massimo (CERN) ; Mereghetti, Alessio ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN)
The High Luminosity Large Hadron Collider (HL–LHC) project aims at increasing the integrated luminosity by a factor of 10 beyond the LHC design value. [...]
CERN-ACC-NOTE-2021-0002. - 2021.
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