Author: Melnikov, S.A.
Paper Title Page
MOY02 NICA Ion Coolider at JINR 12
 
  • E. Syresin, N.N. Agapov, A.V. Alfeev, V. Andreev, A.A. Baldin, A.M. Bazanov, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, G.A. Filatov, V.V. Fimushkin, A.R. Galimov, B.V. Golovenskiy, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, E.V. Ivanov, V. Karpinsky, V. Kekelidze, H.G. Khodzhibagiyan, A. Kirichenko, A.G. Kobets, V.V. Kobets, S.A. Korovkin, S.A. Kostromin, O.S. Kozlov, K.A. Levterov, D.A. Lyuosev, A.M. Malyshev, A.A. Martynov, S.A. Melnikov, I.N. Meshkov, V.A. Mikhailov, Iu.A. Mitrofanova, V.A. Monchinsky, A. Nesterov, A.L. Osipenkov, A.V. Philippov, R.V. Pivin, D.O. Ponkin, S. Romanov, P.A. Rukojatkin, I.V. Shirikov, A.A. Shurygin, A.O. Sidorin, V. Slepnev, A. Slivin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov
    JINR, Dubna, Moscow Region, Russia
  • I.V. Gorelyshev, A.V. Konstantinov, K.G. Osipov
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  The Nuclotron-based Ion Collider fAcility (NICA) is under construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The accelerator facility of collider NICA consists of following elements: acting Alvarez-type linac LU-20 of light ions at energy 5 MeV/u, constructed a new light ion linac of light ions at energy 7 MeV/n and protons at energy 13 MeV, new acting heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u, new acting superconducting booster synchrotron at energy up 600 MeV/u, acting superconducting synchrotron Nuclotron at gold ion energy 4.5 GeV/n and mounted two Collider storage rings with two interaction points. The status of acceleration complex NICA is under discussion.  
slides icon Slides MOY02 [15.467 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY02  
About • Received ※ 24 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 12 October 2021
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TUPSB03
 Commissioning of Electron Cooling System of the NICA Booster Synchrotron  
 
  • S.V. Semenov, A.G. Kobets, S.A. Melnikov, I.N. Meshkov, A.S. Sergeev
    JINR, Dubna, Moscow Region, Russia
  • A.G. Kobets
    IERT, Kharkov, Ukraine
  
  At JINR, within the framework of the NICA project at the Booster synchrotron, the Electron Cooling System (ECS) of the ion beam has been built. The SEO was designed and manufactured at the Budker Institute of Nuclear Physics of SB RAS. The setup is designed to form the required parameters of the ion beam. The report presents a description of the main systems of the installation, presents the modernization of the automated control system, including a thermometry subsystem of the magnetic system, a subsystem for blocking and access control. The results of testing the ECS operation with the modernized equipment as part of the NICA Booster are presented.  
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TUPSB04 Features of the Electronic Cooling System of the NICA Booster 236
 
  • A.G. Kobets, E.V. Ahmanova, S.A. Melnikov, I.N. Meshkov, O. Orlov, S.V. Semenov, A.S. Sergeev, A.A. Sidorin
    JINR, Dubna, Moscow Region, Russia
  • A.V. Butenko, K.G. Osipov, A.O. Sidorin, E. Syresin
    JINR/VBLHEP, Dubna, Moscow region, Russia
  • A.V. Ivanov
    BINP SB RAS, Novosibirsk, Russia
  
  The report presents the results obtained during the commissioning the Electron Cooling System (ECS) of the Booster, the first in the chain of three synchrotrons of the NICA accelerator complex. The work was performed without an ion beam and with a circulating ion beam He1+. In the work with a circulating ion beam, the effect of reducing the lifetime of the circulating ions was observed when the velocities of the cooling electrons and the cooled ions coincide. The dependences of the electron beam current on the ECS parameters for different electron energy values were experimentally obtained. The specific features of operation of electron gun of the NICA Booster are hollow beam formation and the phenomenon of virtual cathode creation confirmed both experiments and by numerical simulation.  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB04  
About • Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 13 October 2021
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TUPSB05 Longitudinal Impedance of the NICA Collider Ring and Ion Beam Stability 239
 
  • S.A. Melnikov, E.V. Ahmanova, I.N. Meshkov
    JINR, Dubna, Moscow Region, Russia
  • A.V. Ivanov
    NSU, Novosibirsk, Russia
  • A.V. Ivanov
    BINP SB RAS, Novosibirsk, Russia
  • M.Yu. Korobitsina, K.G. Osipov
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  The report presents the results of optimization of the longitudinal coupling impedance of the NICA collider ring using numerical simulation of its individual elements by the CST Studio. Based on the obtained results, analytical estimates of the stability of the ion beam in the ring are obtained for one energy value - 3 GeV/u.  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB05  
About • Received ※ 27 September 2021 — Revised ※ 04 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 14 October 2021
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