Title :
Periodic ion channel laser
Author_Institution :
Synchrotron Radiat. Center, Wisconsin Univ., Madison, WI, USA
Abstract :
Radially polarized radiation is amplified by a free electron laser (FEL) in which the undulator is an ion channel with periodic density. To ensure stable beam propagation, the undulator period is much shorter than the betatron wavelength. The gain at a given distance from the axis equals that of a planar magnetostatic undulator with the same quiver velocity. When an ultrarelativistic electron beam propagates in a periodic ion density of 1011-1017 cm-3, a short-wavelength FEL may be obtained.
Keywords :
channelling radiation; free electron lasers; relativistic electron beams; wigglers; betatron wavelength; free electron laser; periodic density; periodic ion channel laser; periodic ion density; polarized radiation; quiver velocity; short-wavelength FEL; stable beam propagation; ultrarelativistic electron beam propagation; undulator; undulator period; Electron beams; Free electron lasers; Ion beams; Laser beams; Magnetic fields; Magnetostatic waves; Optical propagation; Polarization; Synchrotron radiation; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289548
