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Persistent URL http://purl.org/net/epubs/work/55361
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Record Id 55361
Title Improved temporal coherence in SASE FELs
Abstract A method for attosecond pulse train generation in FEL amplifiers was recently proposed. The method uses periodic equal temporal delays between the electron bunch and co-propagating radiation to generate a modal structure in the radiation field. The modes may be phase-locked via an energy modulation in the electron beam. As a consequence of the radiation/electron delays, the relative slippage of the radiation with respect to the electron bunch is also increased and results in a longer cooperation length which improves the temporal coherence. Simulations presented here demonstrate that the longer cooperation length increases the temporal coherence. In particular, it is shown that a SASE FEL can operate in single-spike mode with longer, higher charge electron bunches than previously thought possible.
Organisation ASTeC , ASTeC-MaRS , CI , STFC
Keywords Physics , FEL , SASE , temporal coherence , ASTeC 2010-2011
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Language English (EN)
Type Details URI(s) Local file(s) Year
Paper In Conference Proceedings In !st International Particle Accelerator Conference (IPAC 10), Kyoto, Japan, 24-28 May 2010, (2010). http://accelconf.…0/papers/tupe050.pdf 2010