Author: Sergeev, A.S.
Paper Title Page
MOPSA17 Automated System for Heating High-Vacuum Elements of Superconducting Synchrotrons of the NICA Complex 168
 
  • A.S. Sergeev, A.N. Svidetelev
    JINR, Dubna, Moscow Region, Russia
  • A.V. Butenko
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  To obtain an ultrahigh vacuum, it is necessary to preliminarily degass the "warm" sections of the vacuum system of accelerators by prolonged heating to remove water vapor and molecules of other substances adsorbed on the inner surface of the walls of the vacuum chamber. The presented system allows you to heat products with a known unknown heat capacity and thermal conductivity. Some of the accelerators of the NICA complex are supplied without their own heating system and heating is carried out by specialists directly at the accelerator site.  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA17  
About • Received ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 11 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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