Title :
A possible mechanism of power enhancement in a millimeter wave FEL
Author :
Zhang, Shi-chang ; Jin, Jian-Bo
Author_Institution :
Dept. of Appl. Phys., Southwest Jiaotong Univ., Sichuan, China
Abstract :
A possible mechanism that the self-fields effect of the relativistic electron beam plays a dominant role in the power enhancement of a 35 GHz/61 MW free-electron laser with a reversed guide magnetic field is proposed. Qualitative explanation is that the self-fields felt by the electrons are different when the axial guide magnetic field is reversed from positive to negative, which changes the electrons´ motion and results in different energy exchange between the electron beam and the wave
Keywords :
free electron lasers; millimetre wave lasers; relativistic electron beams; 35 GHz; 61 MW; free electron laser; millimeter wave FEL; output power; relativistic electron beam; reversed guide magnetic field; self-field; Electromagnetic scattering; Electron beams; Energy exchange; Free electron lasers; Laser theory; Magnetic fields; Physics; Power generation; Power lasers; Undulators;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.833724
