Title of article
Theory of the free-electron laser based upon a coaxial hybrid wiggler
Author/Authors
Freund، نويسنده , , H.P. and Jackson، نويسنده , , R.H. and Pershing، نويسنده , , D.E. and Taccetti، نويسنده , , J.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1995
Pages
4
From page
139
To page
142
Abstract
A 3D nonlinear FEL formulation based upon a Coaxial Hybrid Iron (CHI) wiggler is described. The CHI wiggler is created by insertion of a central rod and an outer ring (composed of alternating ferrite and nonferrite spacers) along the axis of a solenoidal. Relatively high field strengths can be achieved with the CHI wiggler at shorter wiggler periods than is possible in many other conventional wiggler designs. The formulation is a slow-time-scale analysis of the interaction of an annular electron beam with the CHI wiggler in a coaxial waveguide. Simulations are presented for W-band operation. The results indicate that operation over a wide bandwidth is practical, and that the uniform- and tapered-wiggler bandwidths are comparable.
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
1995
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
1994196
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