Author: Tcheskidov, V.G.
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.