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Kobets, A. G.

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WECOB01 Methods for Optimization of the Dynamics of the Storage of Positrons in the Surko Trap 81
 
  • M. K. Eseev, A. G. Kobets, I. N. Meshkov, A. Yu. Rudakov, S. Yakovenko
    JINR, Dubna, Moscow Region
 
  Surko traps are used successfully, example, for the accumulation of positrons and antiprotons in the experiments on the generation of antihydrogen atoms the ALPHA/CERN. The report presents methods for optimizing the dynamics of the storage of positrons in the Surko trap based on experimental studies on the trap the facility LEPTA/JINR and theoretical estimates of the accumulation and dynamics of particles with technique "Rotating Wall".  
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TUPS09 LEPTA Project: Towards Positrons 111
 
  • A. G. Kobets, E. V. Ahmanova, V. I. Lokhmatov, V. N. Malakhov, V. Pavlov, A. Yu. Rudakov, A. A. Sidorin, S. Yakovenko
    JINR, Dubna, Moscow Region
  • M. K. Eseev
    NAFU, Arkhangelsk
 
  The Low Energy Positron Toroidal Accumulator (LEPTA) at JINR is under commissioning with circulating positron beam. The LEPTA facility is a small positron storage ring equipped with the electron cooling system and positron injector. The maximum positron energy is of 10 keV. The main goal of the project is generation of intensive flux of Positronium (Ps) atoms - the bound state of electron and positron, and setting up experiments on Ps in-flight. The report presents an advance in the project: up-grade of LEPTA ring magnetic system, status of the commissioning of positron transfer channel, the results of the electron cooling system tests, results of low energy positrons storage positron beam formation using Na22 radioactive positron source of radioactivity of 25 mCi.  
TUPS13 Electron Cooler for NICA Collider 125
 
  • S. Yakovenko, E. V. Ahmanova, A. G. Kobets, I. N. Meshkov, R. Pivin, A. Yu. Rudakov, A. V. Smirnov, N. D. Topilin, Yu. A. Tumanova
    JINR, Dubna, Moscow Region
  • A. A. Filippov
    Allrussian Electrotechnical Institute, Moskow
  • A. V. Shabunov
    JINR/VBLHEP, Moscow
 
  The electron cooling system at electron energy up to 2.5 MeV for the NICA collider is under design at JINR. The electron cooler is developed according to the available world practice of similar systems manufacturing. The main peculiarity of the electron cooler for the NICA collider is using of two cooling electron beams (one electron beam per each ring of the collider) that never has been done before. The acceleration and deceleration of the electron beams is produced by common high-voltage generator. The conceptual design of the electron cooling system has been developed. The cooler consist of three tanks. Two of them contain acceleration/deceleration tubes and are immersed in superconducting solenoids. The third one contains HV generator, which design is based on voltage multiplying scheme