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Gavrilov, N.

Paper Title Page
MPPT084 Dipole and Quadrupole Magnets for the Duke FEL Booster Injector 4147
 
  • S. Mikhailov
    DU/FEL, Durham, North Carolina
  • N. Gavrilov, D.G. Gurov, O.B. Kiselev, A.B. Ogurtsov, E.R. Rouvinsky, K.Zh. Zhiliaev
    BINP SB RAS, Novosibirsk
 
  Funding: This work is supported by U.S. DOE grant # DE-FG02-01ER41175 and by AFOSR MFEL grant # F49620-001-0370.

The full energy booster injector for the Duke FEL storage ring is presently under installation. The booster is designed to provide continuous injection into the Duke FEL storage ring in the top-off mode at the energy variable from 270 MeV to 1.2 GeV. The magnetic elements for the booster have been fabricated and magnetically measured in the Budker Institute of Nuclear Physics, Russia. The paper presents magnetic and mechanical design of the booster dipole and quadrupole magnets and results of their magnetic measurements. Results of simulation of the booster lattice taking into account residual field and non-linearity of the magnets are also presented.

 
WPAE043 Alignment of the Booster Injector for the Duke Free Electron Laser Storage Ring 2786
 
  • M. Emamian, M.D. Busch, S. Mikhailov
    DU/FEL, Durham, North Carolina
  • N. Gavrilov
    BINP SB RAS, Novosibirsk
 
  Funding: This work is supported by U.S. Department of Energy grant DE-FG02-01ER41175 and by U.S. AFOSR MFEL grant F49620-001-0370.

This paper presents the methodology and initial results for mechanical alignment of the booster synchrotron for the Duke FEL storage ring. The booster is a compact design and requires special considerations for alignment. The magnetic and vacuum elements of the arcs have been designed for alignment by a laser tracker system. A parametric 3D design package has been used to determine target coordinates. These target coordinates evolve from design goals to physically verified dimensions by modifying the parametric model to match mechanical measurement data after fabrication. By utilizing the functionality of the laser tracker system and a parametric 3D modeler, a direct and efficient measurement and alignment technique has been developed for a complex geometry.

 
WPAT017 Commissioning of the New RF System with the HOM Damped RF Cavity 1555
 
  • G.Y. Kurkin, V.S. Arbuzov, A. Bushuev, N. Gavrilov, E.I. Gorniker, E. Kenjebulatov, M.A. Kholopov, A.A. Kondakov, Ya.G. Kruchkov, S.A. Krutikhin, I.V. Kuptsov, L.A. Mironenko, N. Mityanina, S.V. Motygin, V.N. Osipov, V. Petrov, A.M. Pilan, A.M. Popov, E. Rotov, I. Sedlyarov, A.G. Tribendis, V. Volkov
    BINP SB RAS, Novosibirsk
  • S. Mikhailov, P.W. Wallace, P. Wang
    DU/FEL, Durham, North Carolina
 
  A new 178 MHz RF system has been commissioned at Duke Storage Ring. It consists of a 140 kW tetrode transmitter, a high order modes (HOM) damped RF cavity and the necessary frequency and voltage control electronics. The cavity walls are made of copper-on-stainless steel bimetal (8 mm Cu, 7 mm SS). The cavity has a larger beam pipe opening (700 mm in diameter) in the down-stream side, which allows the HOM propagating out of the cavity and being absorbed by the ceramic loads. The design details and the commissioning results are presented in this paper.  
FPAE061 Status of the Booster Injector for the Duke FEL Storage Ring 3544
 
  • S. Mikhailov, M.D. Busch, M. Emamian, J.F. Faircloth, S.M. Hartman, J. Li, V. Popov, G. Swift, V. Vylet, P.W. Wallace, P. Wang, Y.K. Wu
    DU/FEL, Durham, North Carolina
  • O. Anchugov, N. Gavrilov, G.Y. Kurkin, Yu. Matveev, D. Shvedov, N. Vinokurov
    BINP SB RAS, Novosibirsk
 
  Funding: This work is supported by U.S. DOE grant # DE-FG02-01ER41175 and by AFOSR MFEL grant # F49620-001-0370.

This paper presents the current status of the booster synchrotron for the Duke FEL storage ring. The booster will provide full energy injection into the storage ring in a wide energy range from 0.27 to 1.2 GeV. When operating the Duke FEL storage ring as the High Intensity Gamma Source (HIGS) to produce gamma photons above 20 MeV with Compton scattering, continuous electron loss occurs. The top-off mode operation of the booster injector will enable the continuous operation of the HIGS facility by replenishing the lost electrons. The design requirement for a compact booster with the single bunch extraction capability remains a challenge for the machine development. Presently, the booster project is in the installation phase. The magnetic elements, vacuum chambers, injection and extraction kickers have been fabricated in the Budker Institute of Nuclear Physics, Russia. The diagnostic and control system is being developed in the FEL lab, Duke University. The commissioning of the booster synchrotron is planned for fall 2005.