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

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

956

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289564

Filename

1289564