Open AccessNEW PERFORMANCE OF RADIO FREQUENCY FAR INFRARED WAVEGUIDE FREE ELECTRON LASER
Author(s) -
Suxing Hu,
Ensheng Fu,
Zhizhan Xu
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.1319
Subject(s) - synchrotron radiation , physics , optics , free electron laser , radiation , radio frequency , electron , waveguide , laser , electromagnetic radiation , synchrotron , far infrared , cathode ray , radio spectrum , telecommunications , quantum mechanics , computer science , astronomy
Idealizing the ultrashort pulse electron beam modulated by radio-frequency as a delta function on time scale, we calculate the coherent synchrotron radiation emitted by the electron micropulse in a rectangular waveguide with the method of eigenmode expansion. We find that when the frequency of radiation is the integral times of the radio frequency ωrf, the radiation field pattern will appear as "pure" eigenmodes of waveguide. In addition, we analyse the frequency performance of the coherent synchrotron radiation and the slippage effect. And finally, the gain of a rectangular electron pulse amplifying the radiation is deduced.