Longitudinal Bunch Lengthening Compensation in a High Charge RF Photoinjector.

Pei, S. ; Adolphsen, C.

Technical Information Center Oak Ridge Tennessee

关键词: Beam dynamics;    Acceleration;    Electron beams;    Linear accelerators;    Photocathodes;   

RP-ID  :  DE2008939101

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In high charge RF photoinjectors for wakefield two beam acceleration studies, due to the strong longitudinal space charge, bunch lengthening between the photocathode and photoinjector exit is a critical issue. We present beam dynamics studies of bunch lengthening in an RF photoinjector for a high charge electron beam and describe methods to compensate the bunch lengthening to various degrees. In particular, the beam dynamics for bunch charge from 1nC to 30nC are studied for an S-band 2856 MHz photoinjector.