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CERN Document Server 30 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.57 sekunder. 
1.
First Results of the IOTA Ring Research at Fermilab / Valishev, Alexander (Fermilab) ; Arodzero, Anatoli (RadiaBeam Tech.) ; Broemmelsiek, Daniel (Fermilab) ; Bruhwiler, David (RadiaSoft, Boulder) ; Burov, Alexey (Fermilab) ; Carlson, Kermit (Fermilab) ; Cathey, Brandon (Fermilab) ; Chattopadhyay, Swapan (Northern Illinois U. ; Fermilab) ; Eddy, Nathan (Fermilab) ; Edelen, Jonathan (RadiaSoft, Boulder) et al.
The IOTA ring at Fermilab is a unique machine exclusively dedicated to accelerator beam physics R&D.; The research conducted at IOTA includes topics such as nonlinear integrable optics, suppression of coherent beam instabilities, optical stochastic cooling and quantum science experiments. In this talk we report on the first results of experiments with implementations of nonlinear integrable beam optics. [...]
2021 - 6 p. - Published in : 10.18429/JACoW-IPAC2021-MOXB02 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.19-24
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2.
Nonlinear optics measurements in IOTA / Hofer, Michael (CERN) ; Tomas Garcia, Rogelio (CERN) ; Stancari, Giulio (Fermi National Accelerator Lab. (US)) ; Romanov, Aleksandr (Fermi National Accelerator Lab. (US)) ; Kuklev, Nikita (The University of Chicago) ; Szustkowski, Sebastian (Northern Illinois University (US)) ; Valishev, Alexander (Fermi National Accelerator Lab. (US))
Nonlinear integrable optics is a recently proposed accelerator lattice design approach which allows to generate an amplitude dependent tune shift which is needed in high brightness accelerators to mitigate fast coherent instabilities. [...]
CERN-ACC-NOTE-2021-0010 ; Fermilab-FN-1119-AD. - 2021. - 34 p.
Full text
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3.
MD2202: compensating long-range beam-beam effectin the LHC using DC wires / Sterbini, Guido (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) ; Fartoukh, Stephane (CERN) et al.
his note summarizes the program of the LHC Machine Development to assess the potential and limits of the long-range beam-beam compensators held in 2017 (MD2202) [...]
CERN-ACC-NOTE-2019-0052. - 2019. - 52 p.
Full text
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4.
First results of the compensation of the beam-beam effect with DC wires in the LHC / Sterbini, Guido (CERN) ; Amorim, David (CERN ; Grenoble, INP) ; Bartosik, Hannes (CERN) ; Bertarelli, Alessandro (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carra, Federico (CERN) ; Carver, Lee (CERN) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) et al.
The compensation of the long-range beam-beam interactions using DC wires is presently under study as an option for enhancing the machine performance in the framework of the High-Luminosity LHC Project (HL-LHC). The original idea dates back more than 15 years ago. [...]
CERN-ACC-2019-192.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEYYPLM3 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEYYPLM3
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5.
The Effect of Electron Lens as Landau Damping Device on Single Particle Dynamics in HL-LHC / Valishev, Alexander (Fermilab)
An electron lens can serve as an effective mechanism for suppressing coherent instabilities in high intensity storage rings through nonlinear amplitude dependent betatron tune shift. [...]
FERMILAB-TM-2659-AD-APC ; arXiv:1707.08239. - 2017. - 5 p.
FERMILABTM - Preprint - Fulltext
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6.
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.
Full text
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7.
Resonant and random excitations on the proton beam in the Large Hadron Collider for active halo control with pulsed hollow electron lenses / Fitterer, Miriam (Fermilab) ; Stancari, Giulio (Fermilab) ; Valishev, Alexander (Fermilab) ; Redaelli, Stefano (CERN) ; Valuch, Daniel (CERN)
We present the results of numerical simulations and experimental studies about the effects of resonant and random excitations on proton losses, emittances, and beam distributions in the Large Hadron Collider (LHC). In addition to shedding light on complex nonlinear effects, these studies are applied to the design of hollow electron lenses (HEL) for active beam halo control. [...]
arXiv:1804.07418; FERMILAB-PUB-18-084-AD-APC; FERMILAB-PUB-21-008-AD.- 2021-02-12 - 24 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 021001 Fulltext: 1804.07418 - PDF; fermilab-pub-18-084-ad-apc - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; External links: Fermilab Library Server (fulltext available); Fermilab Accepted Manuscript
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8.
Effects of Resonant and Random Excitations on the Proton Beam in the Large Hadron Collider, with Applications to the Design of Pulsed Hollow Electron Lenses for Active Halo Control / Fitterer, Miriam (Fermilab) ; Stancari, Giulio (Fermilab) ; Valishev, Alexander (Fermilab) ; Redaelli, Stefano (CERN) ; Valuch, Daniel (CERN)
We present the results of numerical simulations and experimental studies about the effects of resonant and random excitations on proton losses, emittances, and beam distributions in the Large Hadron Collider (LHC). [...]
FERMILAB-PUB-18-084-AD-APC ; arXiv:1804.07418. - 2018. - 30 p.
Fulltext - Fulltext
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9.
Adaptive Space Charge Calculations in MADX-SC / Alexahin, Yuri (Fermilab) ; Kapin, Valery (Fermilab) ; Schmidt, Frank (CERN) ; Valishev, Alexander (Fermilab) ; Wasef, Raymond (CERN)
Since a few years MAD-X allows to simulate beam dynamics with frozen space charge à la Basseti-Erskine. The limitation of simulation with a fixed distribution is somewhat overcome by an adaptive approach that consists of updating the emittances once per turn and by recalculating the Twiss parameters after certain intervals, typically every 1,000 turns to avoid an excessive slowdown of the simulations. [...]
NAPAC-2016-THPOA15.- 2017 - 3 p. - Published in : 10.18429/JACoW-NAPAC2016-THPOA15 Fulltext: PDF; External link: JACoW
In : 2016 North American Particle Accelerator Conference, Chicago, IL, USA, 9 - 14 Oct 2016, pp.THPOA15
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10.
Simulations in Support of Wire Beam-Beam Compensation Experiment at the LHC / Patapenka, Andrei (NIU, DeKalb ; Fermilab) ; Papaphilippou, Yannis (CERN) ; De Maria, Riccardo (CERN) ; Valishev, Alexander (Fermilab)
The compensation of long-range beam-beam interaction with current wires is considered as a possible technology for the HL-LHC upgrade project. A demonstration experiment is planned in the present LHC machine starting in 2018. [...]
NAPAC-2016-TUPOB17.- 2017 - 3 p. - Published in : 10.18429/JACoW-NAPAC2016-TUPOB17 Fulltext: PDF; External link: JACoW
In : 2016 North American Particle Accelerator Conference, Chicago, IL, USA, 9 - 14 Oct 2016, pp.TUPOB17
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