Performance Data of a Pulsed Power Photo-Injector.

Smedley, J. ; Srinivasan-Rao, T. ; Tsang, T. ; Farrell, J. P. ; Batchelor, K.

Technical Information Center Oak Ridge Tennessee

关键词: High-voltage pulse generators;    Cathodes;    Brightness;    Field emission;    Lasers;   

RP-ID  :  DE2003804090

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

There has been a lot of interest in compact sources of high brightness, relativistic electron beams. One approach for developing such a source is to apply a high gradient that remains constant during the generation and acceleration of the electron beam. In this paper, we describe high voltage pulse generators that deliver up to 5 MV with 1 ns pulse duration. These devices are synchronizable to an external trigger with jitter of (approx) 0.5 ns and can establish gradients in excess of 1 GV/m between two electrodes without breakdown. In the presence of field gradients up to 0.5 GV/m, electron beams of bunch lengths ranging from 1 ns to 0.3 ps and diameter< 300(micro) m have been generated by irradiating the cathode with UV lasers. Characteristics of these electron beams as well as those produced via field emission at gradients up to 1 GV/m will be discussed.