Keyword: collider
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TUY01 Status and Perspectives of the VEPP-2000 Complex luminosity, positron, electron, injection 6
 
  • Yu. A. Rogovsky, D.E. Berkaev, A.S. Kasaev, I. Koop, A.N. Kyrpotin, A.P. Lysenko, E. Perevedentsev, V.P. Prosvetov, A.L. Romanov, A.I. Senchenko, P.Yu. Shatunov, Y.M. Shatunov, D.B. Shwartz, A.N. Skrinsky, I.M. Zemlyansky, Yu.M. Zharinov
    BINP SB RAS, Novosibirsk, Russia
  • Yu. A. Rogovsky
    NSU, Novosibirsk, Russia
 
  The VEPP-2000 is a modern electron-positron collider at BINP. Last season in 2012–2013 was dedicated to the energy range of 160520 MeV per beam. The application of round colliding beams concept along with the accurate orbit and lattice correction yielded the high peak luminosity of 1.21031 cm-2s−1 at 500 MeV with average luminosity of 0.91031 cm-2s−1 per run. The peak luminosity limited only by beam-beam effects, while average luminosity – by present lack of positrons in whole energy range of 1601000 MeV. To perform high luminosity at high energies with small dead time the top-up injection is needed. At present new electron and positron injection complex at BINP is commissioned and ready to feed VEPP-2000 collider with intensive beams with energy of 450 MeV. Last calendar 2014 year was dedicated to the full/partial upgrade of complex's main parts.  
slides icon Slides TUY01 [4.152 MB]  
 
TUCA02 On the Way to a Relativistic Electron Cooler electron, solenoid, high-voltage, power-supply 17
 
  • J. Dietrich
    DELTA, Dortmund, Germany
  • K. Aulenbacher, M.W. Bruker, A. Hofmann
    HIM, Mainz, Germany
  • M.I. Bryzgunov, V.V. Parkhomchuk, V.B. Reva
    BINP SB RAS, Novosibirsk, Russia
  • V. Kamerdzhiev
    FZJ, Jülich, Germany
 
  A 4-8 MeV relativistic electron cooling system for the HESR storage ring, which is part of the future GSI facility FAIR, is needed to further boost the luminosity even with strong heating effects of high-density internal targets. In addition, the upgrade to 8 MeV of the relativistic electron cooler is essential for the future Electron Nucleon Collider (ENC at FAIR) project. Using the experience of the 2 MeV electron cooler at COSY, which has the highest energy of all coolers that were made based on the idea of magnetized cooling and transport of the electron beam up to now, a new concept for powering the solenoids at high voltage is proposed.  
slides icon Slides TUCA02 [1.295 MB]  
 
TUZ01 Particle and Accelerator Physics at the VEPP-4M Collider experiment, electron, positron, photon 29
 
  • V.A. Kiselev
    BINP SB RAS, Novosibirsk, Russia
 
  VEPP-4M electron-positron collider is now operating with KEDR detector for high-energy physics experiments in the 1.5−4.0 GeV beam energy range to study of hadrons production in continuum and for precise measurement of the R constant. Parallel with these experiments, the VEPP-4M scientific team carries out a number of accelerator physics investigations. Here are some of them: stabilization of the guide field of VEPP-4M with an accuracy of 10-6 using a special feedback system, development of the method of RF orbit separation of electron and positron beams in VEPP-4M instead of usual electrostatic orbit separation for experiment to test CPT-theorem, finding ways to increase luminosity of VEPP-4M. The paper discusses the recent results, present status and perspective plans of the facility.  
slides icon Slides TUZ01 [2.012 MB]  
 
TUPSA24 Project of Electron Cooler for NICA Collider electron, high-voltage, solenoid, acceleration 85
 
  • A.A. Sidorin, E.V. Ahmanova, A.G. Kobets, I.N. Meshkov, O. Orlov, A.Yu. Rudakov, V.I. Shokin
    JINR, Dubna, Moscow Region, Russia
  • A.G. Kobets
    IERT, Kharkov, Ukraine
  • I.N. Meshkov
    JINR/DLNP, Dubna, Moscow region, Russia
 
  Electron cooling system (ECS) of the NICA collider is designed to form the required parameters of the ion beam at energy of the experiment in the range of 1 - 4.5 GeV/amu that requires energy cooling electrons from 0.5 to 2.5 MeV. To achieve the required energy of the electrons all elements of ECS are placed in tanks filled with sulfur hexafluoride (SF6) under pressure of 6 atm. For testing items ECS elements the test bench "Recuperator" is used. This paper presents the results of testing the prototype elements of the ECS and the first results of technical design of ECS.  
 
TUPSA34 The Power Supply System of Electrostatic Deflecting Plates for Accelerating Complex NICA power-supply, booster, injection, ion 108
 
  • A.A. Fateev, E.V. Gorbachev, N.I. Lebedev
    JINR, Dubna, Moscow Region, Russia
 
  Three pairs of electrostatic deflecting plates will be placed in the booster ring. They will provide injection of heavy ion beam into the Booster. The power supply system for one plate providing all necessary parameters including suppression of the afterpulses is described in the report. The calculated and experimental results are also presented.  
 
THPSC27 Modernization of VEPP-2000 Control System controls, positron, pick-up, software 377
 
  • Yu. A. Rogovsky
    NSU, Novosibirsk, Russia
  • D.E. Berkaev, O.V. Gorbatenko, A.P. Lysenko, Yu. A. Rogovsky, A.L. Romanov, A.I. Senchenko, P.Yu. Shatunov, Y.M. Shatunov
    BINP SB RAS, Novosibirsk, Russia
 
  Electron-positron collider VEPP-2000 delivered data for the high energy physics since the end of 2009. In the summer of 2013 the long shutdown was started dedicated to the deep upgrade of the wide range of subsystems. The main goal of the improvements is to reach or exceed design luminosity in the whole energy range from 200 MeV to 1000 MeV per bunch. The hardware of the accelerator complex consists of high current main field power supplies, low current power supplies for steering and multipole magnets, pulsed power supplies for channel's elements, RF subsystems, BPM and some other special subsystems (such as vacuum, temperature, etc.). The control system is based on CANbas, CAMAC and VME devices. The wide range of software corresponding to specific hardware subsystems forms complicated interacting system that manages all parts of the VEPP-2000 accelerator facility. Automation software is running on several TCP/IP connected PC platforms under operating system Linux and uses client-server techniques. The paper presents general overview and changes made in architecture, implementation and functionality of hardware and software of the VEPP-2000 collider control system.  
poster icon Poster THPSC27 [7.957 MB]  
 
THPSC35 Quench Detector for Superconducting Elements of the NICA Accelerator Complex detector, operation, booster, acceleration 398
 
  • E.V. Ivanov
    JINR, Dubna, Moscow Region, Russia
  • A.O. Sidorin, Z.I. Smirnova, L.A. Svetov
    JINR/VBLHEP, Dubna, Moscow region, Russia
 
  The system provides highly effective detection of quenches in superconducting elements of Nuclotron and NICA facility. Full information about quench element is transmitted to control room. Diagram of analogue quench signal could be displayed on screen for further analysis. The system performs scheduled self-test diagnostics in real time and controls power elements of energy evacuation.
E. Ivanov
 
 
FRCA03 Electron and Positron Beams Transportation Channels to BINP Colliders injection, positron, booster, factory 462
 
  • I.M. Zemlyansky, D.E. Berkaev, V.A. Kiselev, I. Koop, A.V. Otboev, A.M. Semenov, A.A. Starostenko
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: Ministry of Education and Science of the Russian Federation, NSh-4860.2014.2
The overview of electron and positron beams transportation channels from injection complex VEPP-5 to VEPP-4M and VEPP-2000 colliders is presented. The last one is discussed in details. The lattice functions, magnetic elements, beam diagnostic system ans vacuum system are presented. The beam commissioning is scheduled to the end of the year.
 
slides icon Slides FRCA03 [1.039 MB]