A Fast Method to Estimate the Gain of the Microbunch Instability in a Bunch Compressor
نویسنده
چکیده
To reach high peak currents driving Free-Electron Lasers an initial chirped electron bunch is compressed in a bunch compressor. The interaction of the electron beam with its radiation field can yield a collective instability, which amplifies any initial modulation in the current profile. We present a model, which allows one to derive an explicit analytical expression for the gain of the microbunch instability. The results are compared to those of the more complex analytical models.
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تاریخ انتشار 2002