Abstract:
We have studied the dynamics of giant pulse generation in the Duke UV FEL with peak power of several gigawatts. The
giant pulses will be provided by a FEL gain modulation technique developed for the OK-4 UV FEL at Novosibirsk, Russia.
A new mechanism for “super-pulse” generation was discovered during these studies. It allows the generation of peak power
up to 10 GW using the “phase space” refreshment of the electron beam caused by synchrotron motion [V. Litvinenko et al.,
to be published]. We have developed a new macro-particle code for giant pulse simulation including all known mechanisms
of storage ring FEL interaction. Results of these giant pulse simulations are presented in the paper.
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