Title :
The UCLA compact high brightness electron accelerator
Author :
Davis, P. ; Hairapetian, G. ; Hogan, M. ; Joshi, C. ; Lampel, M. ; Park, S. ; Pellegrini, C. ; Rosenzweig, J. ; Travish, G. ; Zhang, R.
Author_Institution :
Dept. of Phys., California Univ., Los Angeles, CA, USA
Abstract :
We report the characteristics and performance of the UCLA S-band compact electron accelerator, consisting of a high brightness, 8 cm long, photo-injector with a copper cathode, followed by a 42 cm long plane wave transformer accelerating structure, delivering a beam energy of 10 MeV. The photo-electrons are produced by a 266 nm laser pulse of less than 4 ps in duration. Over time the laser induced electron emission decreases and the emission from the cathode surface becomes structured. Measurements of the quantum efficiency for Cu before and after this degradation are presented along with images of the non uniform electron emission
Keywords :
copper; electron accelerators; photocathodes; photoemission; 10 MeV; 266 nm; Cu; UCLA S-band compact electron accelerator; UCLA compact high brightness electron accelerator; copper cathode; laser induced electron emission; nonuniform electron emission; photo-injector; plane wave transformer accelerating structure; quantum efficiency; Acceleration; Brightness; Cathodes; Copper; Electron accelerators; Electron emission; Laser beams; Optical pulses; Particle beams; Pulse transformers;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505144
