Xj. Shu et al., NUMERICAL SIMULATIONS OF A WAVE-GUIDE FEL OSCILLATOR USING HOLE COUPLING, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 407(1-3), 1998, pp. 76-80
We theoretically design a compact far-infrared FEL in Chinese Academy
of Engineering Physics (CAEP). The 3D effects such as the diffraction,
hole-coupling and misalignment, and transverse construction of optica
l field of CAEP FIR FEL are studied with an Integrated Numerical Exper
iment model in which transverse distribution is considered carefully.
The results show that the optical transverse construction is good. The
effects of misalignment such as the offset injection of electron beam
and the tilts of the mirrors on the gain, optical power, output, cons
truction of transverse modes are studied, and the limitations of vario
us misalignments are given. (C) 1998 Elsevier Science B.V. All rights
reserved.