Author: Chernousov, Y.D.
Paper Title Page
WEPSB02 Features of the Formation of an Electron Beam in a Linear Accelerator on Parallel-Coupled Structure 279
 
  • Y.D. Chernousov
    ICKC, Novosibirsk, Russia
  • I.M. Ikryanov, I.V. Shebolaev
    ICKC SB RAS, Novosibirsk, Russia
 
  The highest possible, close to 100%, rate of electron capture into acceleration mode has been achieved in an electron linear accelerator based on a parallel-coupled accelerating structure (PCS). High capture rate has been achieved by using an electron gun with high-frequency beam current control, entrance PCS resonators focusing the beam, and in-built into the PCS magnetic periodic focusing system of the solenoidal type based on permanent magnets (MPFS). This study investigates beam dynamics in the developed gun and PCS. The electron gun forms a cylindrical weakly-converging beam in the first resonator of the PCS as a sequence of short pulses with the accelerating frequency, the first and following resonators of the PCS focus, group and accelerate the beam and MPFS focuses and transports electrons to the PCS exit.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-WEPSB02  
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WEPSB52 Amplitude-Phase Characteristics of a Thin Diaphragm in a Rectangular Waveguide 385
 
  • Y.D. Chernousov
    ICKC, Novosibirsk, Russia
  • S.E. Erokhin
    NSU, Novosibirsk, Russia
 
  In this study the model of a thin diaphragm in a rectangular waveguide is used to derive equations linking together the diaphragm's amplitude-phase characteristics. Additionally, an expression is obtained for the location of the closest to the diaphragm main reference plane on which the reflection coefficient is a real negative number, allowing us to determine amplitude-phase characteristics of the diaphragm. The model is confirmed experimentally. The study also shows that the main reference plane is located to the right of the diaphragm. Through adjustment of the location of the main reference plane characteristics of a thing diaphragm in a rectangular waveguide can be fully described.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-WEPSB52  
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