Title :
Design study for the RF photoinjector for the MIT-Bates X-ray laser
Author :
Farkhondeh, M. ; Graves, W.S. ; Milner, R. ; Tschalaer, C. ; van der Laan, J.B. ; Wang, F. ; Zolfaghari, A. ; Zwart, T.
Author_Institution :
MIT-Bates Linear Accel. Center, Middleton, MA, USA
Abstract :
A multiple cell 1.3 GHz room-temperature photoinjector is under design for the MIT Bates X-ray laser project. The design features include tunable intercavity phase shifts allowing separate phasing of the cells for velocity bunching of the beam in the following drift, and optimization of cell shape for high shunt impedance and low wall power density. Beam dynamics are studied for charges ranging from 0.1 to 1 nC using a model, non-ideal laser profile shape. It is shown that collective effects at the high end of the range cause loss of beam brightness.
Keywords :
X-ray lasers; accelerator RF systems; accelerator cavities; particle beam bunching; particle beam dynamics; particle beam injection; 1.3 GHz; 20 degC; MIT-Bates X-ray laser; beam brightness; beam dynamics; collective effects; multiple cell RF photoinjector; nonideal laser profile shape; room-temperature photoinjector; tunable intercavity phase shifts; velocity beam bunching; Brightness; Design optimization; Impedance; Laser beams; Laser modes; Optical design; Radio frequency; Shape; Tunable circuits and devices; X-ray lasers;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289564
