LCLS LLRF Upgrades to the SLAC LINAC.

Akre, R. ; Dowell, D. ; Emma, P. ; Frisch, J. ; Hong, B.

Technical Information Center Oak Ridge Tennessee

关键词: Light sources;    X-ray lasers;    Linear accelerators;    RF systems;    Beam bunching;   

RP-ID  :  DE2007917259

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off crest on the RF to set up a position to energy correlation. The bunch is then compressed by chicanes. The stability of the RF system is critical in setting up the position to energy correlation. Specifications derived from simulations require the RF system to be stable to below 200fS in several critical injector stations and the last kilometer of linac. The SLAC linac RF system is being upgraded to meet these requirements.