TITLE

Experimental demonstration of longitudinal wiggler free-electron laser

AUTHOR(S)
Shraga, I.; Goren, Y.; Leibovitch, C.; Eckhouse, S.; Gover, A.
PUB. DATE
November 1986
SOURCE
Applied Physics Letters;11/24/1986, Vol. 49 Issue 21, p1412
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The lowbitron—a longitudinal wiggler beam interaction device—as a novel source of submillimeter wave radiation was proposed and analyzed theoretically by McMullin and Bekefi [Phys. Rev. A 25, 1826 (1982)]. This letter reports the first experimental measurements of lowbitron radiation obtained with a 740-kV, 400-A electron beam. The measured power spectra in the W-band range for different wiggler field periods agree with the lowbitron interaction theory. They match the intersection points of the shifted fast cyclotron wave dispersion relation ω-(k+kw)v||-Ω0/γ=0 and the TE01 electromagnetic waveguide mode.
ACCESSION #
9821469

 

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