Design of a far-infrared CHI wiggler free-electron laser

Conference · Sat Dec 30 23:00:00 EST 1995

DOI:https://doi.org/10.1016/0168-9002(96)00140-4· OSTI ID:238802

Jackson, R H; Blank, M; Freund, H P ^[1]

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1. Naval Research Lab., Washington, DC (United States); and others

The preliminary design of a far-infrared free-electron laser with a Coaxial Hybrid Iron (CHI) wiggler is presented. The CHI wiggler consists of a central rod and outer ring of alternating ferrite and dielectric spacers. A periodic wiggler field is produced when the CHI structure is immersed in an axial magnetic field. The design under investigation makes use of 1A, 1MV annular electron beam interacting with the TE{sub 01} coaxial waveguide mode at approximately 1 THz ({lambda} = 300 {mu}m). The nominal wiggler period is 0.5 cm and the inner and outer waveguide radii are 0.4 and 0.8 cm, respectively. An axial guide field of 5-10 kG is used. The device performance is modeled with slow-time-scale nonlinear code. Self fields and axial velocity spread are included in the model. Theoretical results will be presented.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• OSTI ID: 238802
• Report Number(s): BNL--61982-Absts.; CONF-9508156--Absts.; ON: DE96002729
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
43 PARTICLE ACCELERATORS
DESIGN
FAR INFRARED RADIATION
FREE ELECTRON LASERS
PERFORMANCE
WIGGLER MAGNETS