Title :
3-D analysis of a rare earth linear wiggler for a free electron laser
Author :
Kumada, M. ; Nakata, Tatsuya ; Takahashi, N. ; Imada, A. ; Tabuchi, N.
Author_Institution :
Nat. Lab. for High Energy Phys., Ibaraki, Japan
fDate :
3/1/1988 12:00:00 AM
Abstract :
It is reported that the performance of a high-power free-electron laser amplifier using a conventional linear permanent-magnet wiggler could be improved by modifying the wiggler to provide a focusing force to the electron beam in both the vertical and horizontal planes simultaneously. The authors discuss several wiggler configurations found using the three-dimensional finite-element method. The effects of the distribution of magnetization, the structure of the rectangular block, and the magnet height on the flux distribution were investigated.
Keywords :
finite element analysis; focusing; free electron lasers; magnetic flux; permanent magnets; rare earth compounds; flux distribution; focusing force; free electron laser; rare earth linear wiggler; three-dimensional finite-element method; Electron beams; Finite element methods; Free electron lasers; Laser theory; Magnetic analysis; Magnetic fields; Magnetic flux; Magnets; Power lasers; Undulators;
Journal_Title :
Magnetics, IEEE Transactions on
