CERN Accelerating science

Accelerators & Technology Sector Notes

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2024-04-11
11:49
Measurement of emittance growth and oscillation spectrum for different damper gains (MD 9407) / Buffat, Xavier (CERN) ; Fornara, Andrea (University of Manchester (GB)) ; Giacomel, Lorenzo (CERN) ; Kostoglou, Sofia (CERN) ; Lannoy, Christophe (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Mounet, Nicolas (CERN) ; Radoslavova, Anna Valeri (Heidelberg University (DE)) ; Sterbini, Guido (CERN) ; Valuch, Daniel (CERN)
The procedure of an experiment aiming at studying the impact of the transverse damper gain on the beam oscillation spectrum and on the emittance growth of colliding beams is described along with the corresponding results. [...]
CERN-ACC-NOTE-2024-0007.
- 2024.
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2024-04-11
11:49
Octupole threshold with trains of bunches (MD 9403) / Buffat, Xavier (CERN) ; Giacomel, Lorenzo (CERN) ; Rumolo, Giovanni (CERN) ; Mether, Lotta (CERN) ; Mounet, Nicolas (CERN) ; Paraschou, Konstantinos (CERN)
We describe an experiment aiming at determining the stability threshold in terms of octupole current for bunch trains at flat top in the LHC. [...]
CERN-ACC-NOTE-2024-0006.
- 2024.
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2024-02-28
17:19
LHC Performance Workshop 2023 / Lamont, Mike (CERN) ; Jones, Rhodri (CERN)
The LHC Chamonix Workshop 2023 took place from 23 to 26 January 2023 at the Majestic conference centre in Chamonix. [...]
CERN-ACC-NOTE-2024-0005.
- 2024. - 53 p.
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2024-02-23
11:18
Slow extraction with octupoles at CERN proton synchrotron to improve extraction efficiency / Taylor, Rebecca ; Fraser, Matthew (CERN) ; Arrutia, Pablo (CERN) ; Johnson, Eliott (CERN) ; Benedetto, Elena (SEEIIST Association (CH))
The extraction inefficiency of the slow extraction process induces radioactivity in the area surrounding the electrostatic septum. [...]
CERN-ACC-NOTE-2023-0027 ; NIMMS-Note-020.
- 2023. - 4 p.
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2024-02-23
10:57
Flexible beam dynamics simulations for slow extraction with Maptrack / Taylor, Rebecca ; Benedetto, Elena (SEEIIST Association (CH)) ; Velotti, Francesco (CERN) ; Arrutia, Pablo (CERN)
The beam dynamics code Maptrack, is used to convert MADX-PTC lattices into static transform maps. [...]
CERN-ACC-NOTE-2024-0004 ; NIMMS-Note-019.
- 2024. - 10 p.
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2024-02-17
21:59
Short Summaries of the ATS Seminars in 2023 / Metral, Elias (CERN) ; Dallocchio, Alessandro (CERN) ; Modena, Michele (CERN) ; Stora, Thierry (CERN)
Four ATS seminars took place in 2023 (https://ats.web.cern.ch/indico-events/1). [...]
CERN-ACC-NOTE-2024-0003.
- 2024. - 13 p.
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2024-02-15
11:55
LHC MD 6945: Injection Power Transients / Karlsen-Baeck, Birk Emil (Sapienza Universita e INFN, Roma I (IT)) ; Argyropoulos, Theodoros (CERN) ; Butterworth, Andy (CERN) ; Calaga, Rama (CERN) ; Damerau, Heiko (CERN) ; Dlugosz, Dominika Agnieszka ; Karpov, Ivan (CERN) ; Timko, Helga (CERN) ; Zampetakis, Michail (CERN)
This note summarizes the procedure and results from the RF MD that was performed to study power transients and klystron saturation at injection. [...]
CERN-ACC-NOTE-2024-0002.
- 2024. - 12 p.
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2024-02-08
17:05
LHC Oxygen Run Preparation in the CERN Injector Complex / Slupecki, Maciej (CERN) ; Aguglia, Davide (CERN) ; Aguiar, Ygor (Universite Jean Monnet (FR)) ; Alemany Fernandez, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Barlow, Roger Andrew (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bilko, Kacper (Universite Jean Monnet (FR)) ; Borburgh, Jan (CERN) et al.
The Ion Accelerator Complex, composed of a linear accelerator (Linac3) and a chain of synchrotrons (Low Energy Ion Ring: LEIR, Proton Synchrotron: PS, Super Proton Synchrotron: SPS and the Large Hadron Collider: LHC) will operate oxygen ion beams for Oxygen–Oxygen (O–O) and proton–Oxygen (p–O) collisions in the LHC in Run 3. [...]
CERN-ACC-NOTE-2024-0001.
- 2024. - 29 p.
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2024-01-30
14:32
Advanced Loss Map Analysis for Performance Assessment of the LHC Collimation System / Ziliotto, Filippo (Universita e INFN, Padova (IT)) ; D'Andrea, Marco (CERN) ; Redaelli, Stefano (CERN) ; Van Der Veken, Frederik (CERN)
Due to the rapid progress of the LHC performance, it is essential to monitor the damage potential of the circulating beams. [...]
CERN-ACC-NOTE-2023-0026.
- 2023.
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2023-12-15
16:26
Workshop on Dust Charging and Beam-Dust Interaction in Particle Accelerators / Blaszkiewicz, Milosz Robert (CERN) ; Felsberger, Lukas (CERN) ; Hernalsteens, Cedric (CERN) ; Heron, Jack (CERN) ; Obermair, Christoph (Graz University of Technology (AT)) ; Rosaz, Guillaume Jonathan (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Uythoven, Jan (CERN) ; Wiesner, Christoph (CERN) ; Wollmann, Daniel (CERN) et al.
The effects of beam-dust interactions have been observed in particle accelerators and have been studied as early as the 1960s. [...]
CERN-ACC-NOTE-2023-0025.
- 2023.
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LHC MD Notes (179)