Author: Ivanyan, M.
Paper Title Page
MOPS045 Coupling Impedance of Rough Resistive Pipe* 700
  • M. Ivanyan, V.M. Tsakanov
    CANDLE, Yerevan, Armenia
  A new version of modelling of the surface roughness impact by thin dielectric layer in the round resistive beam pipe is suggested. The calculation method of coupled resistive-roughness impedance is developed.  
MOPS046 Impedances and Wakes in Round Three-layer Ceramic Waveguide 703
  • M. Ivanyan, A.V. Tsakanian
    CANDLE, Yerevan, Armenia
  The round ceramic waveguide with inner and outer thin metal coating is considered. Using the exact methods the longitudinal impedances and potentials are calculated. Identification of the main patterns of changes in their properties by varying the electrodynamic and geometric parameters of the waveguide is performed as well. The possibility of optimizing the parameters of the waveguide for the effective implementation of two-beam acceleration is discussed.  
TUPC031 Advanced Research Electron Accelerator Laboratory Based on Photocathode RF Gun 1066
  • B. Grigoryan, G.A. Amatuni, V.S. Avagyan, A. Grigoryan, M. Ivanyan, V.G. Khachatryan, E.M. Laziev, K. Manukyan, I.N. Margaryan, V. Sahakyan, A. Sargsyan, A. Tarloyan, A.V. Tsakanian, V.M. Tsakanov, A. Vardanyan
    CANDLE, Yerevan, Armenia
  • T. Vardanyan
    YSU, Yerevan, Armenia
  The low energy sub-picosecond duration electron bunches with extremely small beam emittance have wide applications in advanced research of new accelerator concepts, radiation physics, time-resolved pulse radiolysis and electron diffraction. The conceptual design and experimental program of the Advanced Research Electron Accelerator Laboratory (AREAL) at CANDLE based on photocathode RF gun are presented. The AREAL design implies single and multibunch operation modes with variable beam energy of 5-20 MeV and 10-100 pC bunch charge. The design is based on 3 GHz 1.6 cells RF gun followed by S-Band accelerating linac.  
THPC076 FEL Performance with Focusing Lattice Magnets Alignment Errors 3071
  • V.G. Khachatryan, M. Ivanyan
    CANDLE, Yerevan, Armenia
  At the European XFEL the alignemnet errors of the undulator section quadrupole magnets will be corrected by applying beam based quadrupole alignment methods. Numerical simulations of the SASE process have been conducted to evaluate the FEL power reduction due to residual quadrupole alignment errors. FEL simulations with focusing lattice errors allow choosing an optimal error correction method in terms of FEL performance.