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Niculescu, V.I.R.

Paper Title Page
MOPCH034 On a Skeleton CASSINI Ovals Current Undulator 119
 
  • A.M. Mihalache, V.I.R. Niculescu
    INFLPR, Bucharest - Magurele
  • V. Babin
    INOE, Bucharest
  • M.R. Leonovici, C. Stancu
    Bucharest University, Faculty of Physics, Bucharest-Magurele
  • F. Scarlat
    Valahia University, Faculty of Sciences, Targoviste
 
  A new undulator structure for free electron lasers was presented. Current skeleton CASSINI ovals produced magnetic fields which are spatially periodic. The current structure was in the shape of stacks of modified CASSINI ovals. The current has alternating directions. The magnetic field components for each wire present C2 symmetry. CASSINI undulator transverse cross-section* was approximated by polygons. In cartesian coordinates the Biot-Savart law was analytically evaluated. The magnetic field was mainly transversal and easily adjusted with the current. The versatility of this structure introduces a new type of two beams longitudinal undulator or wiggler design for transverse moments.

*Cassini curve; C. Mihu, I.P. Iambor-1989.