Author: Kladov, S.A.
Paper Title Page
MOPAB273 Nonlinear Coupling Resonances in X-Y Coupled Betatron Oscillations Near the Main Coupling Resonance in VEPP-2000 Collider 863
 
  • S.A. Kladov, E. Perevedentsev
    BINP SB RAS, Novosibirsk, Russia
  • S.A. Kladov, E. Perevedentsev
    NSU, Novosibirsk, Russia
  
  In the vicinity of the linear coupling resonance where the working point of the collider is positioned, we study the effect of nonlinear coupling resonances on the single-particle phase space, beam sizes and the waveform of coherent beam motion. The latter is interesting for diagnostics of the nonlinear dynamics.  
poster icon Poster MOPAB273 [1.142 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB273  
About • paper received ※ 19 May 2021       paper accepted ※ 28 May 2021       issue date ※ 21 August 2021  
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MOPAB274 Two-Stream Effects in Coherent Beam-Beam Oscillations in VEPP-2000 Collider Near the Linear Coupling Resonance 866
 
  • S.A. Kladov, E. Perevedentsev
    BINP SB RAS, Novosibirsk, Russia
  • S.A. Kladov, E. Perevedentsev
    NSU, Novosibirsk, Russia
  
  Synchro-betatron motion of colliding bunches may cause limitations of the high-luminosity performance. For a round beam collider operated near the linear coupling resonance, we present theoretical predictions of the beam-beam coherent synchro-betatron oscillation behavior under the influence of x-y coupling.  
poster icon Poster MOPAB274 [0.968 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB274  
About • paper received ※ 19 May 2021       paper accepted ※ 02 June 2021       issue date ※ 02 September 2021  
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TUPAB002 Round Colliding Beams: Successful Operation Experience 1326
 
  • D.B. Shwartz, O.V. Belikov, D.E. Berkaev, D.B. Burenkov, V.S. Denisov, A.S. Kasaev, A.N. Kirpotin, S.A. Kladov, I. Koop, A.A. Krasnov, A.V. Kupurzhanov, G.Y. Kurkin, M.A. Lyalin, A.P. Lysenko, S.V. Motygin, E. Perevedentsev, V.P. Prosvetov, Yu.A. Rogovsky, A.M. Semenov, A.I. Senchenko, L.E. Serdakov, D.N. Shatilov, P.Yu. Shatunov, Y.M. Shatunov, M.V. Timoshenko, I.M. Zemlyansky, Yu.M. Zharinov
    BINP SB RAS, Novosibirsk, Russia
  • S.A. Kladov, I. Koop, A.A. Krasnov, M.A. Lyalin, E. Perevedentsev, Yu.A. Rogovsky, Y.M. Shatunov, D.B. Shwartz
    NSU, Novosibirsk, Russia
  
  VEPP-2000 electron-positron collider operating in the beam energy range of 150-1000 MeV is the only machine originally designed for and successfully exploiting Round Beams Concept. After injection chain upgrade including link to the new BINP injection complex VEPP-2000 proceeded with data taking since 2017 with luminosity limited only by beam-beam effects. At the low energies (300-600 MeV/beam) the novel technique of effective emittance controlled increase by weak coherent beam shaking allowed to suppress the limiting flip-flop effect and resulted in additional luminosity gain factor of 4. The averaged delivered luminosity at the omega-meson production energy (2*391 MeV) achieved L = 2*1031cm-2s−1/IP. At the top energies above nucleon-antinucleon production threshold the stable operation with luminosity of L = 5*1031cm-2s−1/IP resulted in high average data taking rate of 2 pb-1/day in 2020.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB002  
About • paper received ※ 20 May 2021       paper accepted ※ 07 June 2021       issue date ※ 31 August 2021  
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