Development Of A Laser Photocathode For Use In Wake-Field Acceleration And Compact Accelerator Design Studies

K W Chen; Y C Chae; J Choe

doi:10.1117/12.965100

9 May 1988 Development Of A Laser Photocathode For Use In Wake-Field Acceleration And Compact Accelerator Design Studies

K W Chen, Y C Chae, J Choe

Author Affiliations +

Proceedings Volume 0873, Microwave and Particle Beam Sources and Propagation; (1988) https://doi.org/10.1117/12.965100
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

A back-illuminating short-pulse photocathode using Cs2Sb films for use in a 45-MeV electron linac at the University of Texas at Arlington i under development. The photocathode is designed for an optimum simplicity without requiring an in-situ cathode preparation procedure and to achieve a sufficiently high current density for use in an wake-field acceleration test currently underway. Preliminary tests performed at 6 kV/cm indi1cates that a current of 2.5 mA/cm was satisfactorily achieved at a modest vacuum of 10 torr. However, fatigue effects were observed after a short period of operation in this test. Concurrently, a front-illumination metal photocathodes is also investigated for use in the wake-field test facility. Improvements and refinements are still in progress.

Citation Download Citation

K W Chen, Y C Chae, and J Choe "Development Of A Laser Photocathode For Use In Wake-Field Acceleration And Compact Accelerator Design Studies", Proc. SPIE 0873, Microwave and Particle Beam Sources and Propagation, (9 May 1988); https://doi.org/10.1117/12.965100

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