Author: Sinyatkin, S.V.
Paper Title Page
TUA01 VEPP-4M Electron Positron Collider Operation at High Energy 34
 
  • P.A. Piminov, G.N. Baranov, A.V. Bogomyagkov, V.M. Borin, V.L. Dorokhov, S.E. Karnaev, K.Yu. Karyukina, V.A. Kiselev, E.B. Levichev, O.I. Meshkov, S.I. Mishnev, I.A. Morozov, I.B. Nikolaev, I.N. Okunev, A.G. Shamov, E.A. Simonov, S.V. Sinyatkin, E.V. Starostina, V.N. Zhilich, A.A. Zhukov, A.N. Zhuravlev
    BINP SB RAS, Novosibirsk, Russia
  • C. Todyshev
    Budker Institute of Nuclear Physics, Novosibirsk, Russia
 
  VEPP-4M is an electron positron collider equipped with the universal KEDR detector for HEP experiments in the beam energy range from 1 GeV to 6 GeV. A unique feature of VEPP 4M is the high precision beam energy calibration by resonant polarization technique which allows conducting of interesting experiments despite the low luminosity of the collider. Recently we have started new luminosity acquisition run above 2 GeV. The hadron cross section was measured from 2.3 GeV to 3.5 GeV has been done. The luminosity run for gamma-gamma physics has been started. The luminosity at Y(1S) meson has been obtained. For the beam energy calibration the laser polarimeter is used. The paper discusses recent results from VEPP 4M collider.  
slides icon Slides TUA01 [4.705 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUA01  
About • Received ※ 25 September 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 22 October 2021
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THB01
Precise Generation and Distribution System of RF Reference Signal for SKIF Accelerator Complex  
 
  • D.T. Tinta, B. Baričevič, L. Bogataj, B. Repič, S. Zorzut
    I-Tech, Solkan, Slovenia
  • S.E. Karnaev, A.E. Levichev, S.V. Sinyatkin
    BINP SB RAS, Novosibirsk, Russia
 
  A clean and precise RF reference signal is needed at different locations of a particle accelerator complex to synchronize the different accelerating structures and for other applications. Proper synchronization can only be achieved if the RF reference signal fulfills strict quality parameters in terms of jitter and long-term stability. The precise RF reference signal will be needed also in the case of the SKIF accelerator complex, which is being built by BINP in Novosibirsk. In this case, the reference signal stability of down to <1 ps is required. The design and development of the system for the generation and distribution of the precise RF reference signal at the SKIF complex are presented in this paper. The system comprises a reference master oscillator, distribution amplifiers, which also support the generation of higher harmonics of the RF signal, and optical transfer systems for the transfer of the RF signals over longer distances. Test results obtained with prototypes are also reported.  
slides icon Slides THB01 [6.205 MB]  
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