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1.
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Jet Pump for Liquid Helium Circulation Through the Fast Cycling Magnets of Nuclotron
/ Agapov, Nikolay (Dubna, JINR) ; Emelianov, Nikita (Dubna, JINR) ; Mitrofanova, Julia (Dubna, JINR) ; Nikiforov, Dmitry (Dubna, JINR)
Nuclotron is the first fast cycling superconducting synchrotron intended for the acceleration of high-energy nuclei and heavy ions. Its cryogenic system includes two helium refrigerators with a total capacity of 4000 W at 4.5 K. [...]
2015 - 6 p.
- Published in : Phys. Procedia 67 (2015) 276-281
Fulltext: S187538921500468X - XML; 10.1016_j.phpro.2015.06.087 - PDF;
In : 25th International Cryogenic Conference & International Cryogenic Materials Conference 2014, Twente U., Enschede, The Netherlands, 07 - 11 Jul 2014, pp.276-281
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2.
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Conceptual Design of the HL-LHC Hollow Electron Lens Superconducting Magnet System
/ Foussat, Arnaud (CERN) ; Bragin, Alexey (Novosibirsk, IYF) ; Ferlin, Gerard (CERN) ; Kirby, Glyn (CERN) ; Kolehmainen, Antti (CERN) ; Nikiforov, Danila (Novosibirsk, IYF) ; Pavliuchenko, Vadim (Novosibirsk, IYF) ; Perini, Diego (CERN) ; Petrone, Carlo (CERN) ; Redaelli, Stefano (CERN) et al.
The Hollow Electron Lens (HEL) units are part of the upgrade baseline of the High-Luminosity LHC accelerator (HL-LHC) and will be installed in the machine ring at point P4 on each counter-rotating LHC proton beamline during a long shutdown in 2025-2027 at CERN. The main goal is to improve the collimation system performance by controlling beam energy loss in the beam halo. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4100905
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4100905
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3.
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Electron dynamics for high-intensity hollow electron beams
/ Rossi, A (CERN) ; Nikiforov, D (Novosibirsk, IYF) ; Arsentyeva, M (Novosibirsk, IYF) ; Barnyakov, A (Novosibirsk, IYF) ; Levichev, A (Novosibirsk, IYF)
Hollow Electron Lenses (HEL) will be installed at the High Luminosity Large Hadron Collider to provide a continuous and controlled depletion of beam halo particles by interaction with a superimposed hollow electron beam, of intensity as high as 5 A, and radii 1.1–2.2 mm for 7 TeV LHC operations. In this paper, issues related to the propagation of high intensity hollow electron beams are discussed and the simulations of the electron beam dynamics with feedback to the HEL design are presented. [...]
2021 - 16 p.
- Published in : JINST 16 (2021) P03043
Fulltext: PDF;
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4.
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Overall Injection Strategy for FCC-ee
/ Ogur, Salim (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Antoniou, Fanouria (CERN) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Charles, Tessa (CERN) ; Chehab, Robert (Orsay, LAL) ; Etisken, Ozgur (Ankara U.) ; Furukawa, Kazuro (KEK, Tsukuba) ; Härer, Bastian (CERN) et al.
The Future Circular electron-positron Collider (FCC-ee) requires fast cycling injectors with very low extraction emittances to provide and maintain extreme luminosities at center of mass energy varying between 91.2-385 GeV in the collider. For this reason, the whole injector complex table is prepared by putting into consideration the minimum fill time from scratch, bootstrapping, transmission efficiency as well as store time of the beams in synchrotrons to approach equilibrium emittances. [...]
JACOW, 2019 - 8 p.
- Published in : 10.18429/JACoW-eeFACT2018-TUPAB03
Published fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.TUPAB03
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5.
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Linac and damping ring designs for the FCC-ee
/ Ogur, Salim (CERN ; Bogazici U.) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Kamitani, Takuya (KEK, Tsukuba) ; Levichev, Alexey (Novosibirsk, IYF) ; Martyshkin, Pavel (Novosibirsk, IYF) ; Miyahara, Fusashi (KEK, Tsukuba) et al.
We report the design of the pre-injector chain for the Future Circular e$^+$e$^−$ Collider (FCC-ee) system. The electron beam from a low-emittance RF gun is accelerated by an S-band linac up to 6 GeV. [...]
CERN-ACC-2019-073.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP002
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP002
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6.
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Layout and Performance of the FCC-ee Pre-Injector Chain
/ Ogur, Salim (CERN ; Bogazici U.) ; Charles, Tessa (CERN ; Melbourne U.) ; Oide, Katsunobu (CERN ; KEK, Tsukuba) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Rinolfi, Louis (CERN) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Kamitani, Takuya (KEK, Tsukuba) et al.
The Future Circular e + e − Collider pre-injector chain consists of a 6 GeV S-Band linac, a damping ring at 1.54 GeV and pre-booster ring to reach 20 GeV for injection to the main booster. The electron and positron beams use the same accelerator chain alternatively. [...]
CERN-ACC-2018-093.-
2018 - 8 p.
- Published in : (2018) , pp. MOPMF034
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 022011
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF034
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7.
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Towards a Preliminary FCC-ee Injector Design
/ Ogur, Salim (CERN ; Bogazici U.) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Levichev, Alexey (Novosibirsk, IYF) ; Miyahara, Fusashi (KEK, Tsukuba) ; Nikiforov, Danila (Novosibirsk, IYF) ; Oide, Katsunobu (KEK, Tsukuba) ; Papaphilippou, Yannis (CERN) ; Zimmermann, Frank (CERN)
The Future Circular Collider-ee aims to get high luminosity which mainly relies upon high charge and low geometric emittance in the collider. The FCC-ee is a future project of CERN to operate as Z, W, H and tt factories with varying energies between 45.6 to 175 GeV. [...]
2017 - 4 p.
- Published in : 10.18429/JACoW-eeFACT2016-TUT2H5
Fulltext: PDF;
In : 58th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e-Colliders, Daresbury, United Kingdom, 24 - 27 Oct 2016, pp.TUT2H5
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8.
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Application of a Low-Energy Electron Beam as a Tool for ultrashort bunch length measurement in circular machines
/ Nikiforov, D A (BINP, Novosibirsk) ; Logatchov, P V (BINP, Novosibirsk) ; Malyutin, D (Helmholtz-Zentrum, Berlin) ; Matveenko, A (Helmholtz-Zentrum, Berlin) ; Rusinov, K (BINP, Novosibirsk) ; Starostenko, A A (BINP, Novosibirsk)
A new diagnostic device designed for non-destructive ultrashort bunch length measurement is described. The operating principle of the device and the measuring technique are described. [...]
2017 - 7 p.
- Published in : 10.23727/CERN-Proceedings-2017-001.153
Published version from CERN: PDF;
In : CERN-BINP Workshop for Young Scientists in $e^{+}e^{-}$ Colliders, CERN, Geneva, Switzerland, 22 - 25 Aug 2016, pp.153-158
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9.
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Progress with Long-Range Beam-Beam Compensation Studies for High Luminosity LHC
/ Rossi, Adriana (CERN) ; Aberle, Oliver (CERN) ; Albertone, Joel (CERN) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Bertarelli, Alessandro (CERN) ; Boccard, Christian (CERN) ; Carra, Federico (CERN) ; Cattenoz, Gregory (CERN) ; Delaup, Yorick (CERN) ; Fartoukh, Stephane (CERN) et al.
Long-range beam-beam (LRBB) interactions can be a source of emittance growth and beam losses in the LHC during physics and will become even more relevant with the smaller '* and higher bunch intensities foreseen for the High Luminosity LHC upgrade (HL-LHC), in particular if operated without crab cavities. Both beam losses and emittance growth could be mitigated by compensat-ing the non-linear LRBB kick with a correctly placed current carrying wire. [...]
CERN-ACC-2017-158.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPVA115
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPVA115
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10.
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Preliminary design of FCC-ee pre-injector complex
/ Ogur, S (Bogazici U. ; CERN) ; Barnyakov, A (Novosibirsk, IYF) ; Furukawa, K (KEK, Tsukuba) ; Iida, N (KEK, Tsukuba) ; Levichev, A (Novosibirsk, IYF) ; Miyahara, F (KEK, Tsukuba) ; Nikiforov, D (Novosibirsk, IYF) ; Oide, K (KEK, Tsukuba) ; Papaphilippou, Y (CERN) ; Zimmermann, F (CERN)
The design of a 100 km circular $e^+ e^−$ collider with extremely high luminosity is an important component of the global Future Circular Collider (FCC) study hosted by CERN. FCC-ee is being designed to serve as Z, W, H and top factory, covering beam energies from 45.6 to 175 GeV. [...]
IPAC-2017-TUPAB014; CERN-ACC-2017-308.-
2017 - 7 p.
- Published in : J. Phys.: Conf. Ser. 874 (2017) 012003
- Published in : (2017) , pp. TUPAB014
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPAB014
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