CERN Accelerating science

All PS Complex

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2019-10-15
06:34
Space charge driven resonances in the CERN PS / Asvesta, Foteini (CERN ; Natl. Tech. U., Athens) ; Bartosik, Hannes (CERN) ; Huschauer, Alexander (CERN) ; Papaphilippou, Yannis (CERN)
In the CERN Proton Synchrotron space charge driven resonances are excited around the operational working point due to the periodicity of the optics functions. In this paper, the resonances are studied using analytical methods, i.e. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS047 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS047

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2019-10-15
06:34
Detailed characterisation of the LEIR intensity limitations for a Pb ion beam / Saá Hernández, Angela (CERN) ; Bartosik, Hannes (CERN) ; Biancacci, Nicolo (CERN) ; Hirlaender, Simon (CERN) ; Moreno, Daniel (CERN) ; Zampetakis, Michail (CERN)
The equilibrium emittance of the Pb beam in the CERN Low Energy Ion Ring (LEIR) results from the interplay of electron cooling and heating processes, as intra-beam scattering and space charge. In this paper we present the measurements of the emittance evolution as a function of intensity, working point and resonance excitation, and compare them with the simulations of the heating processes. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS042 Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS042

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2019-10-15
06:34
Energy dependence of the reproducibility and injection efficiency of the LINAC3-LEIR complex / Hirlaender, Simon (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Biancacci, Nicolo (CERN) ; Kain, Verena (CERN) ; Saá Hernández, Angela (CERN) ; Scrivens, Richard (CERN)
High intensities in the CERN Low Energy Ion Ring (LEIR) are achieved by stacking several multi-turn injections from the pre-accelerator LINAC3. Up to seven consecutive 200 μs long, 200 ms spaced pulses are injected from LINAC3 into LEIR. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS040 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS040

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2019-10-12
06:01
Coupling and space charge studies at the CERN PSB / Asvesta, Foteini (Natl. Tech. U., Athens ; CERN) ; Antoniou, Fanouria (CERN) ; Bartosik, Hannes (CERN) ; Di Giovanni, Gian Piero (CERN) ; Papaphilippou, Yannis (CERN)
In the nominal optics of the CERN PS-Booster (PSB), the fourth order coupling resonance is excited by space charge (Montague resonance [1]) due to the same integer tune values. This resonance can be avoided by changing the tunes to different integers. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPTS041 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS041

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2019-10-12
06:01
The new 1-18 MHz wideband RF system for the CERN PS Booster / Paoluzzi, Mauro (CERN) ; Arnaudon, Luca (CERN) ; Bretin, Vladimir (CERN) ; Cuvet, Yves (CERN) ; Daricou, Joel (CERN) ; Energico, Salvatore (CERN) ; Haase, Matthias (CERN) ; Jones, Anthony (CERN) ; Landré, David (CERN) ; Ohmori, Chihiro (J-PARC) et al.
The LHC Injectors Upgrade (LIU) project at CERN prepares the injectors to meet the requirements of the High Luminosity LHC. For protons, it includes the new Linac4, PS Booster (PSB), PS and SPS. [...]
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-WEPRB107 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPRB107

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2019-10-11
06:14
Implementation of CERN secondary beam lines T9 and T10 in BDSIM / D'Alessandro, Gian Luigi (CERN ; JAI, UK) ; Bernhard, Johannes (CERN) ; Boogert, Stewart (JAI, UK) ; Gerbershagen, Alexander (CERN) ; Gibson, Stephen (JAI, UK) ; Nevay, Laurence (JAI, UK) ; Rosenthal, Marcel (CERN) ; Shields, William (JAI, UK)
CERN has a unique set of secondary beam lines, which deliver particle beams extracted from the PS and SPS accelerators after their interaction with a target, reaching energies up to 400 GeV. These beam lines provide a crucial contribution for test beam facilities and host several fixed target experiments. [...]
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-THPGW069 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW069

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2019-10-10
06:53
Time varying RF phase noise for longitudinal emittance blow-up / Albright, Simon (CERN) ; Quartullo, Danilo (U. Rome La Sapienza (main))
RF phase noise was shown to be effective for controlled longitudinal emittance blow-up in the Proton Synchrotron Booster (PSB) at CERN during beam tests in 2017, with further developments in 2018. At CERN, RF phase noise is used operationally in the Super Proton Synchrotron (SPS) and Large Hadron Collider (LHC). [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-THPRB067 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPRB067

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2019-10-10
06:53
Beam based measurements of relative RF phase / Albright, Simon (CERN) ; Kuczynski, Michal (LPCT, Nancy)
The ferrite loaded RF cavities of the CERN Proton Synchrotron Booster will be replaced with Finemet™ loaded cavities during Long Shutdown 2 (2019-2020). To fully realise the potential of the new cavities, the relative RF phases must be aligned along the acceleration ramp, where the revolution frequency changes by nearly a factor of 2. [...]
2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-THPRB066 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPRB066

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2019-10-10
06:53
Characterization of REX/HIE-ISOLDE RFQ longitudinal acceptance and transmission / Bidault, Niels (CERN ; U. Rome La Sapienza (main) ; INFN, Rome) ; Matli, Emanuele (CERN) ; Rodriguez, Jose (CERN)
The Isotope mass Separator On-Line DEvice (ISOLDE) based at CERN, is a Radioactive Ion Beam (RIB) facility where rare isotopes are produced from 1.4 GeV-proton collisions onto a target then are manipulated and transported to user experimental stations for studies, notably in the domain of nuclear physics. The RIB of interest is delivered to a dedicated experimental station either at low (up to 60 keV) or high energy (MeV/u range) after acceleration through the recently completed REX/HIE-ISOLDE linac upgrade. [...]
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-THPGW095 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW095

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2019-10-10
06:53
Phasing of superconductive cavities of the REX/HIE-ISOLDE linac / Matli, Emanuele (CERN) ; Bidault, Niels (CERN ; U. Rome La Sapienza (main) ; INFN, Rome) ; Piselli, Emiliano ; Rodriguez, Jose (CERN)
ISOLDE is a facility dedicated to the production of a large variety of Radioactive Ion Beams. The facility is located at the European Organization for Nuclear Research (CERN). [...]
2019 - 3 p. - Published in : 10.18429/JACoW-IPAC2019-THPGW094 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW094

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