Title :
Effects of self-fields on dispersion relation in a helical wiggler with ion-channel guiding
Author :
Esmaeilzadeh, M. ; Mirzakhani, Mohammad
Author_Institution :
Dept. of Phys., Iran Univ. of Sci. & Technol., Tehran
Abstract :
The effects of self-fields on dispersion relation in a helical wiggler free-electron laser with ion channel guiding are investigated. An equation for dispersion relation showing coupling of space-charge and electromagnetic waves in the presence of self-fields is derived. Numerical solutions of the dispersion equation are used to study growth rate. It is shown that for helical wiggler and ion-channel guiding the growth rate decreases due to the self-fields.
Keywords :
dispersion (wave); free electron lasers; space charge waves; wigglers; dispersion equation; dispersion relation; electromagnetic waves; helical wiggler free-electron laser; ion channel guiding; ion-channel guiding; numerical solutions; self-fields; space-charge waves; Dispersion; Electromagnetic coupling; Electromagnetic scattering; Electron beams; Electrostatics; Equations; Free electron lasers; Magnetic fields; Solenoids; Undulators; Dispersion relation; free-electron laser; ion-channel guiding; self-fields;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516486
