Author: Davidyuk, I.
Paper Title Page
MOP037 Modeling and Design of the Variable Period and Pole Number Undulator for the Second Stage of the Novosibirsk FEL 96
  • I. Davidyuk
    NSU, Novosibirsk, Russia
  • O.A. Shevchenko, V.G. Tcheskidov, N. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  • N. Vinokurov
    KAERI, Daejon, Republic of Korea
  The concept of the permanent magnet variable period undulator (VPU) has been proposed just several years ago and there are few examples of its implementation yet. The VPUs have several advantages compared to conventional undulators. One of them is wider radiation wavelength tunability range and another one is an option to increase the number of poles for shorter periods. Both these advantages will be realized in VPU which is being developed now at Budker INP. In this paper we present the 2-D and 3-D magnetic field simulation results and discuss the design features of this VPU.