Title :
Motion stability of equilibrium electrons with off-axis guiding centers in conventional and reversed guide field FELs
Author :
Huang, Xiao-Li ; Wang, S.-J. ; Xu, Y.-G. ; Ji, Y.-P. ; Liu, X.-X. ; Zhang, S.-C.
Author_Institution :
Sch. of Electr. & Inf. Eng., Xihua Univ., Chengdu, China
Abstract :
This paper is devoted to the comparative study of the motion stability of the electrons with off-axis guiding centers in FELs with a conventional and reversed guide magnetic field. Results show that the trajectory divergence mainly comes from the first harmonic of the 3-D wiggler field, and can be effectively suppressed by use of the reversed guide field.
Keywords :
finite element analysis; free electron lasers; laser stability; 3D wiggler field; FEL; equilibrium electrons; motion stability; off-axis guiding centers; reversed guide field; trajectory divergence; Educational institutions; Electron beams; Fluctuations; Magnetic fields; Magnetic properties; Stability analysis; Undulators;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380452
