CERN Accelerating science

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Latest additions:
2020-09-18
15:52
Design and Tuning of Secondary Beamlines in the CERN North and East Areas / Gatignon, Lau (CERN)
This document gives guidance for the design and tuning of secondary beam lines at CERN. [...]
CERN-ACC-NOTE-2020-0043.
- 2020.
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2020-08-20
13:33
Numerical tools for Crab Cavity simulations / Alekou, Androula (University of Manchester (GB)) ; Appleby, Robert Barrie (University of Manchester (GB)) ; Bartosik, Hannes (CERN) ; Papaphilippou, Yannis (CERN)
This note gives the steps to be followed in order to include the crab cavities module in MAD-X for tracking simulations in SixTrack. [...]
CERN-ACC-NOTE-2020-0042.
- 2020. - 16 p.
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2020-01-23
17:31
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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2019-10-22
10:48
MD 3292: Measurements of Landau Damping by Means of BTF Measurements / Tambasco, Claudia (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Buffat, Xavier (CERN) ; Bruce, Roderik (CERN) ; Gasior, Marek (CERN) ; Levens, Tom (CERN) ; Mereghetti, Alessio (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) ; Pieloni, Tatiana (EPFL - Ecole Polytechnique Federale Lausanne (CH)) et al.
The methodology applied in previous MDs has shown the possibility of using BTFs measurements to estimate the transverse Landau Damping of the beams for different machine configurations. [...]
CERN-ACC-NOTE-2019-0045.
- 2019. - 10 p.
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2019-10-22
10:41
MD 3290: Instability threshold measurements in the presence of a controlled external excitation / Tambasco, Claudia (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Barranco, Javier (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Buffat, Xavier (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) ; Levens, Tom (CERN) ; Pieloni, Tatiana (EPFL - Ecole Polytechnique Federale Lausanne (CH))
During the MD 2722 an unexpected instability was observed at flat top energy during BTF measurements. [...]
CERN-ACC-NOTE-2019-0044.
- 2019. - 6 p.
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2019-09-19
11:31
Studies of PACMAN effects in the HL-LHC / Ribes Metidieri, Ariadna (University of Barcelona (ES)) ; Buffat, Xavier (CERN)
This note summarises the status of the studies on PACMAN beam-beam effects in the HL-LHC project. [...]
CERN-ACC-NOTE-2019-0037.
- 2019. - 34 p.
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2018-10-23
17:16
New SC Algorithm for MAD-X / Schmidt, Frank (CERN) ; Alexahin, Yuri (Fermi National Accelerator Lab. (US))
MAD-X allows to simulate space-charge effects by approximating the macro-particle ensemble with a Gaussian distribution and using analytic formulas for calculation of the space-charge kick at locations which should be chosen in advance e.g [...]
CERN-ACC-2018-0036.
- 2018. - 20 p.
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2018-09-25
17:58
Higher Order Dispersion and Momentum Compaction in MAD-X/PTC using NormalForm / Schmidt, Frank (CERN) ; Skowronski, Piotr Krzysztof (CERN) ; Valishev, Alexander (Fermi National Accelerator Lab. (US)) ; Lebedev, Valeri (Fermi National Accelerator Lab. (US))
Dispersion and the momentum compaction factor have been treated since ages in the literature of accelerator physics to first order. [...]
CERN-ACC-NOTE-2018-0062.
- 2018. - 14 p.
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2018-08-13
15:09
Review of path-length calculations for rectangular bending magnets with arbitrary pole-face angles / Berrig, Olav Ejner (CERN)
This document shows how to calculate the path-length of rectangular bending magnets in a beam line. [...]
CERN-ACC-NOTE-2018-0059.
- 2017. - 9 p.
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2018-08-01
11:15
An Updated Global Optics Correction Scheme / Dilly, Joschua Werner (Ministere des affaires etrangeres et europeennes (FR)) ; Malina, Lukas (CERN) ; Tomas Garcia, Rogelio (CERN)
Currently, the linear global correction scheme implemented in the OMC software uses responses to the available correctors, computed as difference quotients by MAD-X requiring appropriate step-size. [...]
CERN-ACC-NOTE-2018-0056.
- 2018. - 15 p.
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