CERN Accelerating science

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1.
Modelling the interaction of a relativistic beam particle with an electron cloud / Iadarola, Giovanni (CERN)
We study the transverse and longitudinal forces acting on a relativistic beam particle due to the interaction with an electron cloud present in the beam pipe. [...]
CERN-ACC-NOTE-2019-0033.
- 2019. - 16 p.
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2.
A simplified analytical model for the electron cloud build-up process / Iadarola, Giovanni (CERN)
A simple analytical model is introduced to illustrate the main features involved in the formation of electron clouds in the beam pipes of particle accelerators [...]
CERN-ACC-NOTE-2021-0029.
- 2021.
3.
Properties of the electromagnetic fields generated by a circular-symmetric e-cloud pinch in the ultra-relativistic limit / Iadarola, Giovanni (CERN)
The electromagnetic fields generated by an electron cloud in the beam pipe of a particle accelerator introduce additional forces in the dynamics of the particle beams, which can be responsible of beam instabilities, beam losses and transverse emittance blow-up [...]
CERN-ACC-NOTE-2019-0017.
- 2019. - 10 p.
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4.
Beam-induced heat loads on the beam screens of the inner triplets for the HL-LHC / Skripka, Galina (CERN) ; Iadarola, Giovanni (CERN)
The expected heat load induced on the beam screens has been evaluated for the triplet assemblies in the four experimental Insertion Regions (IRs) of the HL-LHC [...]
CERN-ACC-NOTE-2018-0009.
- 2018. - 50 p.
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5.
Beam-induced heat loads on the beam screens of the HL-LHC arcs / Skripka, Galina (Joint Institute for Nuclear Research (RU)) ; Iadarola, Giovanni (CERN)
The heat load on the beam screens of cold magnets and drift sections in the HL-LHC arcs is estimated considering power deposition from impedance, synchrotron radiation and electron cloud. [...]
CERN-ACC-NOTE-2019-0041.
- 2019. - 25 p.
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6.
TDIS pressure profile simulations after LS2 / Ribes Metidieri, Patricia (University of Barcelona (ES)) ; Yin Vallgren, Christina (CERN) ; Skripka, Galina (CERN) ; Iadarola, Giovanni (CERN) ; Bregliozzi, Giuseppe (CERN)
During the LS2 (Long Shutdown 2), the current TDI (Beam Absorber for Injection) will be replaced by the new so called, TDIS (Beam Absorber for Injection Segmented). [...]
CERN-ACC-NOTE-2018-0075.
- 2018. - 18 p.
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7.
Implementation and benchmarking of the Furman-Pivi model for Secondary Electron Emission in the PyECLOUD simulation code / Wulff, Eric (Lund University (SE)) ; Iadarola, Giovanni (CERN)
The Furman-Pivi model for the secondary electron emission process has been implemented in the PyECLOUD simulation code and can now be used in alternative to the ECLOUD model, developed for the LHC beam screen surface at the time of the LHC design. [...]
CERN-ACC-NOTE-2019-0029.
- 2019. - 30 p.
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8.
MD 1266: Injection of "high performance reach" 80b 25 ns beam / Bartmann, Wolfgang (CERN) ; Fraser, Matthew Alexander (CERN) ; Iadarola, Giovanni (CERN) ; Kain, Verena (CERN) ; Velotti, Francesco Maria (CERN) ; Muller, Jeremy Alfred
This note summarises the measurements and observations performed during the LHC Machine Development concerning the injection of batches of 80 bunches for future “high performance reach” of the LHC [...]
CERN-ACC-NOTE-2017-0003.
- 2017. - 9 p.
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9.
A Vlasov approach to study transverse instabilities driven by electron clouds / Iadarola, Giovanni (CERN) ; Mether, Lotta (CERN) ; Mounet, Nicolas (CERN) ; Sabato, Luca
We present a linearized method to study transverse instabilities due to electron clouds. [...]
CERN-ACC-NOTE-2020-0054.
- 2020. - 22 p.
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10.
Modelling and implementation of the “6D” beam-beam interaction / Iadarola, Giovanni (CERN) ; De Maria, Riccardo (CERN) ; Papaphilippou, Yannis (CERN)
These slides illustrate the numerical modelling of a beam-beam interaction using the “Synchro Beam Mapping” approach. [...]
CERN-ACC-SLIDES-2018-0001.
- 2018. - 104 p.
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