Permanent magnet helical wiggler for free-electron laser and cyclotron maser applications

Bekefi, G.; Ashkenazy, J.
August 1987
Applied Physics Letters;8/31/1987, Vol. 51 Issue 9, p700
Academic Journal
A permanent magnet, ‘‘bifilar’’ helical wiggler for use in free-electron lasers and cyclotron masers has been designed, assembled, and measured. It is composed of a cylindrical array of staggered samarium-cobalt bar magnets, transversely magnetized and held in place in an axially grooved hollow metal cylinder. High-quality helically polarized fields of several kilogauss can be readily achieved.


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